CN217486109U - Secondary junction box device and mutual inductor system - Google Patents

Abstract

The utility model relates to a secondary terminal box device and mutual-inductor system, secondary terminal box device include box unit, insulating unit, guide rail unit and binding post unit, and the box unit is by aluminum alloy material casting shaping, and insulating unit and guide rail unit set up in the inside of box unit, binding post unit and guide rail unit sliding connection. The waterproof junction box has the advantages that the box unit is cast and molded by aluminum alloy materials, the protection grade can reach IP66, the use requirement under outdoor severe environment can be met, namely, the dustproof grade can completely prevent dust from invading, and meanwhile, the waterproof grade can reach the purpose of forcefully spraying water to each direction of the junction box, and no harmful influence is caused; the guide rail unit is arranged in the box unit, and can be provided with wiring terminal units with various functions, so that the universality is strong, and the operation is simple and convenient; the aluminum alloy material is adopted for casting and molding to replace the traditional epoxy resin casting, so that the environmental pollution caused by waste generated in the epoxy resin production process and the secondary pollution after the epoxy resin finished product is discarded are effectively reduced.

Description

Secondary junction box device and mutual inductor system

Technical Field

The utility model relates to a mutual induction technical field especially relates to a secondary terminal box device and mutual-inductor system.

Background

With the development of electric power industry, many products are used in a relatively harsh external environment, and the ip (ingress protection) protection level for the invasion of foreign matters by the electrical equipment housing is also required to be higher and higher.

With the improvement of social progress and labor cost, automation and intellectualization inevitably become development trends, however, the existing junction box can only adapt to one type of junction box and cannot adapt to different requirements, and a user needs to repeatedly purchase different types of junction boxes for use, so that the cost is high.

The earth is facing a severe environmental crisis, and strengthening environmental protection is a necessity of human development and is also the basis of sustainable development. The epoxy resin cast junction box used by most products at present can cause environmental pollution no matter the waste generated in the production of epoxy resin or the problem that the scrapped epoxy resin product is difficult to degrade.

At present, no effective solution is provided aiming at the problems of low protection level, poor adaptability, environmental pollution and the like in the related technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a secondary terminal box device and mutual-inductor system to not enough among the prior art to the protection level that exists is low among the solution correlation technique, adaptability is poor, environmental pollution scheduling problem.

In order to achieve the purpose, the utility model adopts the technical proposal that:

in a first aspect, the present invention provides a secondary junction box device for being connected with a transformer device, including:

a box unit cast from an aluminum alloy material;

an insulating unit disposed inside the cartridge unit;

a rail unit provided inside the cartridge unit;

and the wiring terminal unit is arranged on the guide rail unit in a sliding manner.

In some of these embodiments, the cartridge unit comprises:

a cartridge element;

a cover member detachably provided to a side of the case member;

a bottom plate element detachably provided to a bottom of the case element;

and the boss element is arranged in the box body element and is detachably connected with the guide rail unit.

In some of these embodiments, the cartridge unit further comprises:

the first mounting hole elements are distributed at the front part of the box body element and are used for being detachably connected with the box cover element;

the second mounting hole elements are distributed at the bottom of the box body element and are used for being detachably connected with the bottom plate element;

the plurality of third mounting hole elements are distributed at the rear part of the box body element and are used for being detachably connected with the mutual inductor device;

the plurality of fifth mounting hole elements are distributed in the boss element and used for being detachably connected with the guide rail unit;

the fourth mounting hole elements are distributed in the box body element and used for being detachably connected with the insulation unit;

the plurality of sixth mounting hole elements are distributed on the side part of the box cover element and correspond to the plurality of first mounting hole elements;

and the seventh mounting hole elements are distributed on the side part of the bottom plate element and correspond to the second mounting hole elements.

In some of these embodiments, the cartridge unit further comprises:

a first seal groove element disposed at a rear of the cartridge element.

In some of these embodiments, the cartridge unit further comprises:

a second seal groove element disposed at a rear portion of the lid element.

In some of these embodiments, the cartridge unit further comprises:

a third seal groove element disposed at an upper portion of the base plate element.

In some of these embodiments, the insulation unit comprises:

an insulating member detachably provided inside the case unit.

In some of these embodiments, the insulation unit further comprises:

and the eighth mounting hole elements are distributed on the insulating element and are used for being detachably connected with the box unit.

In some of these embodiments, the insulating element is asymmetrically disposed, and the upper opening of the insulating element is larger than the lower opening of the insulating element.

In some of these embodiments, the insulating elements are arranged in an "I" shape or a "well" shape.

In some of these embodiments, the rail unit includes:

and the guide rail element is detachably arranged in the box unit and is in sliding connection with the wiring terminal unit.

In some of these embodiments, the rail unit further comprises:

and the ninth mounting hole elements are distributed at two ends of the guide rail element and are used for being detachably connected with the box unit.

In some of these embodiments, the terminal block unit includes:

a terminal member slidably provided to the rail unit.

In some of these embodiments, further comprising:

and the locking unit is detachably connected with the box unit, the insulation unit and the guide rail unit respectively.

In some of these embodiments, the locking unit comprises:

a plurality of first connecting members detachably connected to a front portion of the cartridge unit;

a plurality of second connecting elements detachably connected to the bottom of the cartridge unit;

a plurality of third connection elements detachably connected to the box unit and the transformer system, respectively;

a plurality of fourth connecting elements detachably connected to the cartridge unit and the insulating unit, respectively;

and the fifth connecting elements are detachably connected with the box unit and the guide rail unit respectively.

In some of these embodiments, the locking unit further comprises:

a plurality of first locking elements removably coupled to corresponding ones of the first coupling elements.

In some of these embodiments, the locking unit further comprises:

a plurality of second locking elements, a plurality of the second locking elements being detachably connected with the corresponding second connecting elements.

In some of these embodiments, the locking unit further comprises:

a plurality of third locking elements, a plurality of said third locking elements being removably connected with a corresponding said third connecting element.

In some of these embodiments, the locking unit further comprises:

a plurality of fourth locking elements, a plurality of said fourth locking elements being removably connected with a corresponding said fourth connecting element.

In some of these embodiments, the locking unit further comprises:

a plurality of fifth locking elements, a plurality of said fifth locking elements being removably connected with a corresponding said fifth connecting element.

In some of these embodiments, the locking unit further comprises:

the first gasket elements are detachably connected with the corresponding first connecting elements.

In some of these embodiments, the locking unit further comprises:

and the second gasket elements are detachably connected with the corresponding second connecting elements.

In some of these embodiments, the locking unit further comprises:

a plurality of third shim elements removably connected with corresponding third connection elements.

In some of these embodiments, the locking unit further comprises:

a plurality of fourth shim elements removably connected with corresponding fourth connecting elements.

In some of these embodiments, the locking unit further comprises:

a plurality of fifth shim elements removably connected with the corresponding fifth connecting elements.

In some of these embodiments, further comprising:

a sealing unit detachably connected with the cartridge unit.

In some of these embodiments, the sealing unit comprises:

a first sealing member detachably provided to a front of the cartridge unit for sealing the front of the cartridge unit.

In some of these embodiments, the sealing unit comprises:

and the second sealing element is detachably arranged at the bottom of the box unit and is used for sealing the bottom of the box unit.

In some of these embodiments, the sealing unit comprises:

and a third sealing member detachably provided at a rear portion of the box unit, for sealing a connection position of the box unit and the instrument transformer apparatus.

In some of these embodiments, further comprising:

a grounding unit disposed at least one side of the box unit.

In some of these embodiments, the grounding unit includes:

the grounding element is arranged on at least one side of the box unit and is used for externally grounding the box unit.

In some of these embodiments, further comprising:

and the lead unit penetrates through the box unit and is respectively connected with the mutual inductor device and the wiring terminal unit.

In some of these embodiments, the lead unit comprises:

and one ends of the lead elements are connected with the wiring terminal unit, and the other ends of the lead elements penetrate through the box unit and are connected with the mutual inductor device.

In a second aspect, the present invention provides a transformer system, including:

the secondary terminal block device according to the first aspect;

and the mutual inductor device is detachably connected with the secondary junction box device.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

the utility model discloses a secondary terminal box device and mutual-inductor system, box unit are cast by aluminum alloy material and are formed, and protection level can reach IP66, can satisfy the operation requirement under the outdoor adverse circumstances, and dustproof level can reach and prevent the dust invasion completely, and waterproof level can reach the violent water spray of each direction to the terminal box simultaneously, does not have harmful effects; the guide rail unit is arranged in the box unit, and can be provided with wiring terminal units with various functions, so that the universal connector is strong in universality, simple and convenient to operate and capable of meeting different requirements; the aluminum alloy material is adopted for casting molding to replace the traditional epoxy resin casting, so that the environmental pollution caused by wastes generated in the epoxy resin production process and the secondary pollution caused by the discarded epoxy resin finished product can be effectively reduced.

Drawings

FIGS. 1 a-1 b are cross-sectional views of a secondary junction box arrangement according to an embodiment of the present invention;

fig. 2 a-2 b are schematic views of a cartridge unit according to an embodiment of the invention;

fig. 3 is a schematic view of an insulation unit according to an embodiment of the invention;

fig. 4 is a schematic view of a rail unit according to an embodiment of the invention;

fig. 5 is a schematic view of a terminal block unit according to an embodiment of the present invention;

fig. 6 is a schematic view of a locking unit according to an embodiment of the invention;

fig. 7 is a schematic view of a sealing unit according to an embodiment of the invention;

fig. 8 is a schematic diagram of a grounding unit according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a lead element according to an embodiment of the invention;

fig. 10 is a schematic diagram of a transformer system according to an embodiment of the invention.

Wherein the reference numerals are: 100. a secondary junction box device;

110. a cartridge unit; 111. a cartridge element; 112. a lid member; 113. a floor element; 114. a boss element; 115a, a first mounting hole element; 115b, a second mounting hole element; 115c, a third mounting hole element; 115e, a fourth mounting hole element; 115d, a fifth mounting hole element; 115f, a sixth mounting hole element; 115g, a seventh mounting hole element; 116a, a first seal groove element; 116b, a second seal groove element; 116c, a third seal groove element;

120. an insulating unit; 121. an insulating member; 122. an eighth mounting hole element;

130. a guide rail unit; 131. a rail element; 132. a ninth mounting hole element;

140. a terminal block unit; 141. a terminal element;

150. a locking unit; 151a, a first connection element; 151b, a first shim member; 152a, a second connecting element; 152b, a second shim member; 153a, a third connecting element; 153b, a third shim element; 154a, a fourth connecting element; 154b, a fourth shim member; 155a, a fifth connecting element; 155b, a fifth shim member;

160. a sealing unit; 161. a first sealing element; 162. a second sealing element; 163. a third sealing element;

170. a grounding unit; 171. a ground element;

180. a lead unit; 181. a lead element;

200. provided is a mutual inductor device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Example 1

The embodiment relates to the utility model discloses a secondary junction box device.

This embodiment is an exemplary embodiment of the present invention, and as shown in fig. 1a to 1b, a secondary junction box device 100 for connecting with a transformer device includes a box unit 110, an insulating unit 120, a rail unit 130, and a terminal unit 140. Wherein, the cartridge unit 110 is cast and molded by aluminum alloy material; the insulating unit 120 is disposed inside the case unit 110; the rail unit 130 is disposed inside the cartridge unit 110; the wire connecting unit is slidably disposed on the rail unit 130.

As shown in fig. 2 a-2 b, the case unit 110 includes a case member 111, a case cover member 112, a base plate member 113, and a boss member 114. Wherein, the box cover element 112 is detachably arranged at the side of the box body element 111; the bottom plate member 113 is detachably provided at the bottom of the case member 111; the boss member 114 is disposed inside the case member 111 and detachably coupled to the rail unit 130.

The box body element 111 and the box cover element 112 are cast from an aluminum alloy material.

Wherein, the box cover element 112 is detachably arranged at the front part of the box body element 111.

The bottom of the box element 111 is provided with an opening, and the bottom plate element 113 can close the opening and can also expose the opening. I.e., the floor element 113 may be a blind plate or an open-hole plate for use with a cable splice.

Among them, there are two boss elements 114 symmetrically disposed inside the box element 111 for detachable connection with both ends of the rail unit 130.

Further, the cartridge unit 110 further includes a plurality of first mounting hole elements 115a, a plurality of second mounting hole elements 115b, a plurality of third mounting hole elements 115c, a plurality of fifth mounting hole elements 115e, a plurality of fourth mounting hole elements 115d, a plurality of sixth mounting hole elements 115f, and a plurality of seventh mounting hole elements 115 g. The first mounting hole elements 115a are distributed at the front of the box element 111 and are used for being detachably connected with the box cover element 112; the second mounting hole elements 115b are distributed at the bottom of the box body element 111 and are used for being detachably connected with the bottom plate element 113; a plurality of third mounting hole elements 115c are distributed at the rear part of the box body element 111 and are used for being detachably connected with the mutual inductor device; a plurality of fourth mounting hole elements 115d are distributed inside the box element 111 and are used for being detachably connected with the insulating unit 120; a plurality of fifth mounting hole elements 115e are distributed inside the boss element 114 for detachable connection with the rail unit 130; the sixth mounting hole elements 115f are distributed on the side of the box cover element 112 and correspond to the first mounting hole elements 115 a; the seventh mounting hole elements 115g are disposed at the side of the bottom plate element 113, and correspond to the second mounting hole elements 115 b.

Wherein the number of the first mounting hole elements 115a is the same as the number of the sixth mounting hole elements 115f, and the number of the second mounting hole elements 115b is the same as the number of the seventh mounting hole elements 115 g.

In some of these embodiments, the first mounting hole elements 115a are four in number and symmetrically distributed.

In some of the embodiments, the upper side of the front of the box member 111 is provided with two first mounting hole members 115a, and the lower side of the front of the box member 111 is provided with two first mounting hole members 115 a.

In some of these embodiments, the second mounting hole elements 115b are four in number and symmetrically distributed.

In some of the embodiments, two second mounting hole members 115b are provided at the front side of the bottom of the box member 111, and two second mounting hole members 115b are provided at the rear side of the bottom of the box member 111.

In some of these embodiments, the third mounting hole elements 115c are six in number and symmetrically distributed.

In some of the embodiments, three third mounting hole members 115c are provided at the upper side of the rear portion of the box member 111, and three third mounting hole members 115c are provided at the lower side of the rear portion of the box member 111.

In some of these embodiments, the number of the fourth mounting hole elements 115d is four, and are symmetrically distributed.

In some of the embodiments, two fourth mounting hole members 115d are provided at an upper side of the inside of the case member 111, and two fourth mounting hole members 115d are provided at a lower side of the inside of the case member 111.

In some of these embodiments, the fifth mounting hole elements 115e are ten in number and are symmetrically distributed.

In some of these embodiments, five fifth mounting hole elements 115e are provided per boss element 114.

In some of these embodiments, the number of the sixth mounting hole elements 115f is four, and are symmetrically distributed.

In some of these embodiments, two sixth mounting hole members 115f are provided at the upper side of the cover member 112, and two sixth mounting hole members 115f are provided at the lower side of the cover member 112.

In some of these embodiments, the seventh mounting hole elements 115g are four in number and symmetrically distributed.

In some of these embodiments, two seventh mounting hole members 115g are provided on the front side of the floor member 113, and two seventh mounting hole members 115g are provided on the rear side of the floor member 113.

Further, the box unit 110 further includes a first sealing groove element 116a, and the first sealing groove element 116a is disposed at the rear portion of the box element 111 and is used for placing a sealing ring to improve the sealing performance between the box element 111 and the transformer apparatus.

In some embodiments, the first seal groove element 116a is circular, elliptical, or rectangular in shape.

Further, the box unit 110 further includes a second sealing groove element 116b, and the second sealing groove element 116b is disposed at the rear of the cover element 112 for placing a sealing ring to improve the sealing performance between the box body element 111 and the cover element 112.

In some embodiments, the second seal groove element 116b is circular, elliptical, or rectangular in shape.

Further, the box unit 110 further includes a third sealing groove element 116c, and the third sealing groove element 116c is disposed on the upper portion of the bottom plate element 113 and is used for placing a sealing ring to improve the sealing performance between the box element 111 and the bottom plate element 113.

In some of these embodiments, third seal groove element 116c is circular, elliptical, or rectangular in shape.

As shown in fig. 3, the insulation unit 120 includes an insulation member 121. Wherein the insulating member 121 is detachably provided inside the cartridge unit 110.

Specifically, the insulating member 121 is detachably provided inside the box member 111.

In some of these embodiments, the insulating element 121 is disposed asymmetrically, and the upper opening of the insulating element 121 is larger than the lower opening of the insulating element 121.

In some of these embodiments, the insulating element 121 is disposed in an "I" shape or a "well" shape.

Further, the insulation unit 120 further includes a number of eighth mounting hole members 122. Wherein, a plurality of eighth mounting hole elements 122 are distributed on the insulating element 121 for detachable connection with the box unit 110.

Specifically, the eighth mounting hole member 122 is provided corresponding to the fourth mounting hole member 115 d.

In some of these embodiments, the number of eighth mounting hole elements 122 is the same as the number of fourth mounting hole elements 115 d.

In some of these embodiments, the number of the eighth mounting hole elements 122 is four, and they are symmetrically arranged.

In some of the embodiments, two eighth mounting hole members 122 are provided on the upper side of the insulating member 121, and two eighth mounting hole members 122 are provided on the lower side of the insulating member 121.

As shown in fig. 4, the rail unit 130 includes a rail member 131. Wherein, the rail member 131 is detachably disposed inside the box unit 110 and slidably connected with the terminal unit 140.

Specifically, the rail member 131 is disposed inside the box member 111 and detachably connected to the boss member 114.

In some of these embodiments, rail element 131 is a DIN rail.

Further, the rail unit 130 further includes a plurality of ninth mounting hole members 132. Wherein, a plurality of ninth mounting hole elements 132 are distributed at two ends of the guiding rail element 131 for detachable connection with the box unit 110.

Specifically, the ninth mounting hole member 132 is provided corresponding to the fifth mounting hole member 115 e.

In some of these embodiments, the number of ninth mounting hole elements 132 is equal to or less than the number of fourth mounting hole elements 115 d.

In some of these embodiments, the number of ninth mounting hole elements 132 is two.

In some of these embodiments, a ninth mounting hole member 132 is provided at each end of the rail member 131. Wherein, the position of the guide rail element 131 on the box element 111 can be adjusted, thereby meeting different requirements.

As shown in fig. 5, the terminal block 140 includes a terminal member 141. Wherein the terminal element 141 is slidably disposed on the rail unit 130.

Specifically, the terminal member 141 is slidably provided to the rail member 131.

In some of these embodiments, the terminal element 141 is snap-slidably disposed to the rail element 131.

Further, the secondary junction box apparatus 100 further includes a locking unit 150. The locking unit 150 is detachably connected to the box unit 110, the insulating unit 120, the rail unit 130, and the transformer apparatus, respectively.

Specifically, the locking unit 150 is detachably connected to the case member 111, the lid member 112, the bottom plate member 113, the boss member 114, the insulating member 121, the rail member 131, and the transformer device, respectively.

As shown in fig. 6, the locking unit 150 includes a plurality of first connecting members 151a, a plurality of second connecting members 152a, a plurality of third connecting members 153a, a plurality of fourth connecting members 154a, and a plurality of fifth connecting members 155 a. Wherein the plurality of first connection members 151a are detachably connected with the front of the cartridge unit 110; a plurality of second connection members 152a detachably connected to the bottom of the cartridge unit 110; the plurality of third connecting elements 153a are detachably connected to the box unit 110 and the transformer apparatus, respectively; a plurality of fourth connection elements 154a are detachably connected to the cartridge unit 110 and the insulation unit 120, respectively; the fifth connection members 155a are detachably connected to the cartridge unit 110 and the rail unit 130, respectively.

Specifically, the first connection element 151a is detachably connected to the corresponding first mounting hole element 115a and the sixth mounting hole element 115f, the second connection element 152a is detachably connected to the corresponding second mounting hole element 115b and the seventh mounting hole element 115g, the third connection element 153a is detachably connected to the corresponding third mounting hole element 115c, the fourth connection element 154a is detachably connected to the corresponding fourth mounting hole element 115d and the eighth mounting hole element 122, and the fifth connection element 155a is detachably connected to the corresponding fifth mounting hole element 115e and the ninth mounting hole element 132.

Here, the number of the first connection members 151a is the same as the number of the first mounting hole members 115a and the number of the sixth mounting hole members 115 f.

In some of these embodiments, the first connection elements 151a are four.

In some of these embodiments, the first connection element 151a is a bolt.

In some of these embodiments, the first connection element 151a is an M8 bolt.

Wherein the number of the second connection members 152a is the same as the number of the second mounting hole members 115b and the number of the seventh mounting hole members 115 g.

In some of these embodiments, there are four second connection elements 152 a.

In some of these embodiments, the second connecting element 152a is a bolt.

In some of these embodiments, the second connection element 152a is an M6 bolt.

Wherein the number of the third connection members 153a is the same as the number of the third mounting hole members 115 c.

In some of these embodiments, the third connecting elements 153a are six.

In some of these embodiments, the third connecting element 153a is a bolt.

In some of these embodiments, the third connecting element 153a is an M8 bolt.

Wherein the number of the fourth connecting members 154a is the same as the number of the fourth mounting hole members 115d and the number of the eighth mounting hole members 122.

In some of these embodiments, the fourth connecting elements 154a are four.

In some of these embodiments, the fourth connecting element 154a is a bolt.

In some of these embodiments, the fourth connecting element 154a is an M6 bolt.

Wherein the number of the fifth connection members 155a is the same as the number of the ninth mounting hole members 132.

In some of these embodiments, there are two fifth connection elements 155 a.

In some of these embodiments, the fifth connecting element 155a is a bolt.

Further, the locking unit 150 further includes a plurality of first gasket members 151b, and the plurality of first gasket members 151b are detachably coupled to the corresponding first coupling members 151 a.

Wherein the number of the first gasket members 151b is greater than or equal to the number of the first connecting members 151 a.

In some of these embodiments, the number of first shim members 151b is at least four.

In some of these embodiments, the first shim member 151b is a washer.

Further, the locking unit 150 further includes a plurality of second gasket members 152b, and the plurality of second gasket members 152b are detachably connected to the corresponding second connecting members 152 a.

Wherein the number of second gasket members 152b ≧ the number of second connecting members 152 a.

In some of these embodiments, the second spacer elements 152b are at least four.

In some of these embodiments, the second shim member 152b is a washer.

Further, the locking unit 150 further includes a plurality of third gasket members 153b, and the plurality of third gasket members 153b are detachably coupled to the corresponding third coupling members 153 a.

Wherein the number of the third gasket members 153b is greater than or equal to the number of the third coupling members 153 a.

In some of these embodiments, the third gasket member 153b is at least six.

In some of these embodiments, the third gasket member 153b is a washer.

Further, the locking unit 150 further includes a plurality of fourth spacer members 154b, and the plurality of fourth spacer members 154b are detachably coupled with the corresponding fourth coupling members 154 a.

Wherein the number of fourth spacer elements 154b is larger than or equal to the number of fourth coupling elements 154 a.

In some of these embodiments, the number of fourth shim elements 154b is at least four.

In some of these embodiments, the fourth shim member 154b is a washer.

Further, the locking unit 150 further includes a plurality of fifth gasket members 155b, and the plurality of fifth gasket members 155b are detachably coupled with the corresponding fifth coupling members 155 a.

Wherein the number of fifth gasket members 155b is greater than or equal to the number of fifth connecting members 155 a.

In some of these embodiments, there are at least two fifth shim elements 155 b.

In some of these embodiments, the fifth shim element 155b is a washer.

Further, the locking unit 150 further includes a plurality of first locking elements detachably connected with the corresponding first connection elements 151 a.

Wherein the number of the first locking elements is the same as the number of the first connection elements 151 a.

In some of these embodiments, the first locking elements are four.

In some of these embodiments, the first locking element is a self-locking threaded sleeve.

Further, the locking unit 150 further includes a plurality of second locking elements detachably connected with the corresponding second connecting elements.

Wherein the number of second locking elements is the same as the number of second connecting elements 152 a.

In some of these embodiments, the second locking elements are four.

In some of these embodiments, the second locking element is a self-locking threaded sleeve.

Further, the locking unit 150 further includes a plurality of third locking elements detachably connected to the corresponding third connecting elements 153 a.

Wherein the number of the third locking elements is the same as the number of the third connection elements 153 a.

In some of these embodiments, the third locking element is six.

In some of these embodiments, the third locking element is a nut.

Further, the locking unit 150 further comprises a number of fourth locking elements, which are detachably connected with corresponding fourth connecting elements 154 a.

Wherein the number of fourth locking elements is the same as the number of fourth connecting elements 154 a.

In some of these embodiments, the fourth locking element is four.

In some of these embodiments, the fourth locking element is a nut.

Further, the locking unit 150 further comprises one or several fifth locking elements, which are detachably connected with corresponding fifth connecting elements 155 a.

Wherein the number of the fifth locking elements is the same as the number of the fifth connection elements 155 a.

In some of these embodiments, the fifth locking element is two.

In some of these embodiments, the fifth locking element is a nut.

Further, the secondary junction box apparatus 100 further includes a sealing unit 160. Wherein the sealing unit 160 is detachably connected with the cartridge unit 110.

As shown in fig. 7, the sealing unit 160 includes at least one of a first sealing member 161, a second sealing member 162, and a third sealing member 163. Wherein the first sealing member 161 is detachably provided at the rear of the box unit 110, for sealing a connection position of the box unit 110 and the instrument transformer apparatus; a second sealing member 162 is detachably provided to the front of the cartridge unit 110 for sealing the front of the cartridge unit 110; the third sealing member 163 is detachably provided to the bottom of the cartridge unit 110, and seals the bottom of the cartridge unit 110.

Specifically, first seal element 161 is detachably provided to first seal groove element 116 a; second seal element 162 is detachably disposed in second seal groove element 116 b; third seal member 163 is detachably provided in third seal groove member 116 c.

In some of these embodiments, the first sealing element 161 is a rubber sealing ring.

In some of these embodiments, the second sealing element 162 is a rubber seal.

In some of these embodiments, the third sealing element 163 is a rubber sealing ring.

Further, the secondary junction box apparatus 100 further includes a grounding unit 170. The grounding unit 170 is disposed on at least one side of the box unit 110.

As shown in fig. 8, the grounding unit 170 includes at least one grounding element 171. The grounding element 171 is disposed on at least one side of the box unit 110, and is used for grounding the box unit 110 externally.

Specifically, the grounding element 171 is disposed on at least one side of the box member 111.

In some of these embodiments, the grounding element 171 is disposed on the right side of the box member 111.

In some of these embodiments, the grounding element 171 is a ground plate.

Further, the secondary junction box apparatus 100 further includes a lead unit 180. The lead unit 180 penetrates through the box unit 110 and is connected to the transformer device and the terminal unit 140.

As shown in fig. 9, the lead unit 180 includes a plurality of lead elements 181, one ends of the plurality of lead elements 181 are connected to the terminal unit 140, and the other ends of the plurality of lead elements 181 pass through the case unit 110 and are connected to the transformer apparatus.

Specifically, one end of the plurality of lead elements 181 is connected to the terminal element 141, and the other end of the plurality of lead elements 181 passes through the case element 111 and is connected to the transformer apparatus.

The utility model has the advantages that the box unit is cast and molded by aluminum alloy materials, the protection grade can reach IP66, the use requirement under outdoor severe environment can be met, namely, the dustproof grade can completely prevent dust from invading, and the waterproof grade can strongly spray water to all directions of the junction box without harmful influence; the guide rail unit is arranged in the box unit, and can be provided with wiring terminal units with various functions, so that the universality is strong, the operation is simple and convenient, and different requirements are met; the aluminum alloy material is adopted for casting and molding to replace the traditional epoxy resin casting, so that the environmental pollution caused by waste generated in the epoxy resin production process and the secondary pollution after the epoxy resin finished product is discarded can be effectively reduced.

Example 2

This embodiment relates to the utility model discloses a mutual-inductor system.

An exemplary embodiment of the present invention, as shown in fig. 10, is a transformer system including the secondary junction box device 100 and the transformer device 200 according to embodiment 1. The transformer apparatus 200 is detachably connected to the secondary junction box apparatus 100.

Specifically, the transformer apparatus 200 is detachably connected to the rear side of the box body element 111 of the box unit 110 of the secondary junction box apparatus 100.

In some of these embodiments, the oil storage unit or base unit of the transformer apparatus 200 is detachably connected to the rear side of the box member 111.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims (10)

1. A secondary junction box apparatus for connection with a transformer system, comprising:

a box unit cast from an aluminum alloy material;

an insulating unit disposed inside the case unit;

a rail unit provided inside the cartridge unit;

and the wiring terminal unit is arranged on the guide rail unit in a sliding manner.

2. The secondary junction box device as recited in claim 1, wherein the box unit comprises:

a cartridge element;

a box cover element detachably provided to a side of the box body element;

a bottom plate element detachably provided to a bottom of the case element;

the boss element is arranged inside the box body element and is detachably connected with the guide rail unit; and/or

The insulation unit includes:

an insulating member detachably provided inside the cartridge unit; and/or

The guide rail unit includes:

a rail member detachably provided inside the box unit and slidably connected to the terminal unit; and/or

The terminal block unit includes:

a terminal member slidably provided to the rail unit.

3. The secondary junction box device of claim 2, wherein said box unit further comprises:

the first mounting hole elements are distributed at the front part of the box body element and are used for being detachably connected with the box cover element;

the second mounting hole elements are distributed at the bottom of the box body element and are used for being detachably connected with the bottom plate element;

the third mounting hole elements are distributed at the rear part of the box body element and are used for being detachably connected with the mutual inductor system;

the plurality of fourth mounting hole elements are distributed in the box body element and are used for being detachably connected with the insulation unit;

the plurality of fifth mounting hole elements are distributed in the boss element and used for being detachably connected with the guide rail unit;

the plurality of sixth mounting hole elements are distributed on the side part of the box cover element and correspond to the plurality of first mounting hole elements;

the plurality of seventh mounting hole elements are distributed on the side part of the bottom plate element and correspond to the plurality of second mounting hole elements; and/or

The insulation unit further includes:

a plurality of eighth mounting hole elements, which are distributed on the insulating element and are used for being detachably connected with the box unit; and/or

The rail unit further includes:

and the ninth mounting hole elements are distributed at two ends of the guide rail element and are used for being detachably connected with the box unit.

4. The secondary junction box device of claim 2, wherein said box unit further comprises:

a first seal groove element disposed at a rear of the cartridge element; and/or

A second seal groove element disposed at a rear portion of the lid element; and/or

A third seal groove element disposed at an upper portion of the base plate element.

5. The secondary terminal block device according to claim 2, wherein the insulating member is asymmetrically arranged, and an upper opening of the insulating member is larger than a lower opening of the insulating member.

6. The secondary junction box device according to any one of claims 1 to 5, further comprising:

a locking unit detachably connected to the cartridge unit, the insulating unit, and the rail unit, respectively; and/or

A sealing unit detachably connected to the cartridge unit; and/or

A grounding unit disposed at least one side of the box unit; and/or

And the lead unit penetrates through the box unit and is respectively connected with the mutual inductor system and the wiring terminal unit.

7. The secondary terminal block device according to claim 6, wherein the locking unit includes:

a plurality of first connecting members detachably connected to a front portion of the cartridge unit;

a plurality of second connecting elements detachably connected to the bottom of the cartridge unit;

a plurality of third connection elements detachably connected to the box unit and the transformer system, respectively;

a plurality of fourth connecting elements detachably connected to the cartridge unit and the insulating unit, respectively;

a plurality of fifth connecting elements which are detachably connected with the box unit and the guide rail unit respectively; and/or

The sealing unit includes:

a first sealing member detachably provided to a front portion of the cartridge unit for sealing the front portion of the cartridge unit; and/or

A second sealing member detachably provided at the bottom of the cartridge unit for sealing the bottom of the cartridge unit; and/or

A third sealing member detachably provided at a rear portion of the box unit for sealing a connection position of the box unit with the instrument transformer system; and/or

The grounding unit includes:

the grounding element is arranged on at least one side of the box unit and is used for externally grounding the box unit; and/or

The lead unit includes:

and one ends of the lead elements are connected with the wiring terminal unit, and the other ends of the lead elements penetrate through the box unit and are connected with the transformer system.

8. The secondary terminal block device according to claim 7, wherein the locking unit further comprises:

a plurality of first shim elements detachably connected to the corresponding first connection elements; and/or

A plurality of second shim elements detachably connected to the corresponding second connecting elements; and/or

A plurality of third shim elements detachably connected to the corresponding third connecting elements; and/or

A plurality of fourth shim elements detachably connected to corresponding fourth connecting elements; and/or

A plurality of fifth spacer elements removably connected to corresponding ones of the fifth connecting elements.

9. The secondary terminal block device according to claim 7 or 8, wherein the locking unit further comprises:

a plurality of first locking elements detachably connected with the corresponding first connecting elements; and/or

A plurality of second locking elements which are detachably connected with the corresponding second connecting elements; and/or

A plurality of third locking elements, the plurality of third locking elements being detachably connected to the corresponding third connecting elements; and/or

A plurality of fourth locking elements which are detachably connected with the corresponding fourth connecting elements; and/or

A plurality of fifth locking elements, a plurality of said fifth locking elements being removably connected with a corresponding said fifth connecting element.

10. An instrument transformer system, comprising:

the secondary terminal block device according to any one of claims 1 to 9;

and the mutual inductor system is detachably connected with the secondary junction box device.

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