A wiring bar support for a dry-type transformer that is convenient for wiring

Abstract

This invention discloses a terminal block support for a dry-type transformer that facilitates wiring, relating to the technical field of terminal block support structures. It includes a busbar locking structure, placed on the top surface of a protection box, for connecting the protection box and the busbar. When the busbar is pulled, the locking clip within the busbar locking structure acts as a brake on the busbar. A locking connector connects the branch line of the busbar to the joint of the dry-type transformer. When the busbar locking structure brakes the busbar, a self-locking head within the locking connector locks the conductive plug at the end of the branch line. The beneficial effect of this invention is that when the busbar is accidentally dragged, the busbar locking structure quickly locks the connection between the busbar and the protection box, preventing further pulling on the busbar. Simultaneously, during the locking process, the locking connector is triggered, firmly locking the conductive plug inside the connector slot, preventing the branch line from detaching from the transformer joint and causing an accident.

Description

Technical Field

[0001] The invention relates to the technical field of transformer connection, in particular to a connection row support of a dry-type transformer which is convenient for connection. Background Art

[0002] Dry-type transformers and busbars are common equipment in power systems, and they play an important role in power transmission and distribution systems.

[0003] A dry-type transformer is a device that converts energy into different voltage levels. Compared with oil-immersed transformers, dry-type transformers use dry insulation materials instead of liquid insulation, so they are more environmentally friendly and safer. Dry-type transformers are widely used in industrial and commercial fields, especially in indoor environments.

[0004] The busbar is the main conductor used to connect equipment and supply power in the power transmission system. It is a thick conductor, generally made of aluminum alloy or copper. The busbar connects various devices in series to distribute and manage the load in the power system.

[0005] Normally, the connection between the busbar and the transformer is relatively stable, and the wiring joints are mostly fixed with bolts. However, during the discharge process, the temperature of the wiring joints rises, and over time, the connection joints become loose due to thermal expansion and contraction of the material. In special circumstances, collisions may occur, and the busbar may be pulled, which may cause the transformer and wiring joints to fall off and cause accidents. Summary of the invention

[0006] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0007] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0008] Therefore, an object of the present invention is to provide a terminal bar support for a dry-type transformer that is convenient for wiring and solves the problem of accidents caused by accidental separation between the busbar and the transformer.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a wiring bar support for a dry-type transformer that is easy to connect, comprising a dry-type transformer and a protection box for protecting the dry-type transformer; a busbar for connecting the dry-type transformer and a control cabinet, and a support frame for supporting the busbar to a certain extent, wherein the support frame is placed outside the protection box;

[0010] A busbar locking structure is placed on the top surface of the protection box and is used to connect the protection box and the busbar. When the busbar is pulled, the locking clamp in the busbar locking structure will brake the busbar.

[0011] A locking joint, used to connect the branch line of the busbar and the joint of the dry-type transformer. When the busbar locking structure brakes the busbar, the conductive plug at the end of the branch line is locked by the self-locking head in the locking joint;

[0012] The trigger cable is used to connect the busbar locking structure and the locking joint. The busbar locking structure generates a pulling force on the locking joint through the trigger cable; the trigger cable is guided and limited on the busbar through the guide joint.

[0013] As a preferred solution of the wiring bar support of the dry-type transformer convenient for wiring of the present invention, wherein: the busbar locking structure comprises a movable collar and a movable collar; the movable collar is not fixed to the top surface of the protection box, and the fixed collar is fixed to the top surface of the protection box; the movable collar and the fixed collar are both sleeved on the busbar; the movable collar is placed above the fixed collar;

[0014] A plurality of pulling heads are provided at the lower end of the movable collar, and a rack is provided on the inner side of the pulling head. The rack is meshed with driven gears on both sides of the lower end of the locking chuck, and the two sides of the locking chuck are movably connected to the fixed collar through a shaft on one side of the driven gear.

[0015] As a preferred solution of the wiring bar support of the dry-type transformer convenient for wiring of the present invention, wherein: the locking joint comprises a joint groove, the outer side of the joint groove is provided with a first roller, the inner side is provided with the self-locking head, and the conductive plug is placed between the self-locking heads;

[0016] Second rollers are fixed on both sides of the first roller, the second rollers are connected to the joint grooves through connecting blocks, and the second rollers are also connected to the self-locking head through a deflection cable;

[0017] The first roller is used to receive one end of the busbar, and the first roller can be rotated by being pulled by a trigger cable.

[0018] As a preferred solution of the terminal block support of the dry-type transformer that is easy to wire as described in the present invention, wherein: a plurality of pulling heads are provided at the lower end of the movable ring, a rack is provided on the inner side of the pulling head, the rack is meshed with the driven gears on both sides of the lower end of the locking clamp, and the two sides of the locking clamp are movably connected to the fixed ring through the shaft on one side of the driven gear.

[0019] As a preferred solution of the terminal block support of the dry-type transformer for easy wiring of the present invention, wherein: the upper end of the conductive plug is provided with a first inclined surface on both sides, the lower end of the first inclined surface is provided with a second inclined surface, and the lower end of the second inclined surface is provided with a card slot; the card head can be placed in the card slot.

[0020] As a preferred solution of the terminal block support of the dry-type transformer for easy wiring of the present invention, the joint slot includes a slot shell, the slot shell is in an inverted U shape, and arc grooves are provided on both sides of the slot shell; the wire pulling head is placed in the arc groove.

[0021] As a preferred solution of the terminal block support of the dry-type transformer for easy wiring of the present invention, the connector slot, conductive plug and self-locking head are all made of metal and are conductive; the connection block and deflection pull wire are made of insulating material.

[0022] As a preferred solution of the wiring bar support of the dry-type transformer for easy wiring of the present invention, the guide joint includes a U-shaped frame, a rolling head is provided inside the U-shaped frame, and the rolling head is movably connected to the U-shaped frame.

[0023] As a preferred solution of the terminal bar support of the dry-type transformer that is easy to wire as described in the present invention, wherein: the lower end of the busbar guides the direction of the busbar branch line through a connecting frame; the connecting frame includes a port joint, and the outer side of the port joint is connected to the support rod through a ball shaft; the support rods are movably connected; the support rod and the branch line are bound by a clamp.

[0024] As a preferred solution of the wiring bar support of the dry-type transformer that is easy to connect according to the present invention, the number of the connecting frames is consistent with the number of the branches at the busbar port.

[0025] Beneficial effects of the present invention: In the present invention, when the busbar is accidentally dragged, the busbar locking structure will quickly lock the connection between the busbar and the protection box to prevent the busbar from being further pulled; at the same time, during the locking process of the busbar locking structure, the locking joint effect will be triggered, and the conductive plug will be firmly locked inside the joint slot to prevent the branch line and the transformer joint from falling off and causing an accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0027] Figure 1A schematic diagram of the use status of the terminal bar support of a dry-type transformer for easy wiring;

[0028] Figure 2 A schematic diagram of the internal structure of the busbar locking structure of the terminal bar support of a dry-type transformer for easy wiring;

[0029] Figure 3 A schematic diagram showing the use of a connection frame for a dry-type transformer terminal bar support member for easy wiring;

[0030] Figure 4 Schematic diagram of the locking joint of the terminal bar support of the dry-type transformer for easy wiring;

[0031] Figure 5 Schematic diagram of the disassembly of the locking joint of the terminal bar support of a dry-type transformer for easy wiring. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0035] Reference Figure 1~Figure 5 , which is the first embodiment of the present invention, provides a wiring bar support for a dry-type transformer that is easy to connect, comprising a dry-type transformer and a protection box 800 for protecting the dry-type transformer; a busbar 600 for connecting the dry-type transformer and a control cabinet, and a support frame 700 for supporting the busbar 600 to a certain extent, wherein the support frame 700 is placed outside the protection box 800;

[0036] The invention is characterized in that: it comprises a busbar locking structure 100, which is placed on the top surface of the protection box 800 and is used to connect the protection box 800 and the busbar 600. When the busbar 600 is pulled, the locking clamp 104 in the busbar locking structure 100 will brake the busbar 600.

[0037] The locking connector 500 is used to connect the branch line of the busbar 600 and the connector of the dry-type transformer. When the busbar locking structure 100 brakes the busbar 600, the conductive plug 503 at the end of the branch line is locked by the self-locking head 504 in the locking connector 500.

[0038] The trigger cable 200 is used to connect the busbar locking structure 100 and the locking joint 500. The busbar locking structure 100 generates a pulling force on the locking joint 500 through the trigger cable 200; the trigger cable 200 is guided and limited on the busbar 600 through the guide joint 300.

[0039] The busbar locking structure 100 includes a movable collar 101 and a fixed collar 105; the movable collar 101 is not fixed to the top surface of the protection box 800, and the fixed collar 105 is fixed to the top surface of the protection box 800; the movable collar 101 and the fixed collar 105 are both sleeved on the busbar 600; the movable collar 101 is placed above the fixed collar 105;

[0040] A plurality of pulling heads 102 are provided at the lower end of the movable ring 101, and a rack 103 is provided on the inner side of the pulling head 102. The rack 103 is meshed with driven gears 106 on both sides of the lower end of the locking chuck 104, and the two sides of the locking chuck 104 are movably connected to the fixed ring 105 through the shaft on one side of the driven gear 106.

[0041] Preferably, the movable collar 101 is fixed to the busbar 600, and the pulling head 102 is fixed to the movable collar 101; when the pulling head 102 moves upward following the movable collar 101, the rack 103 drives the driven gear 106 to rotate, thereby driving the locking chuck 104 to deflect inward, and the locking chuck 104 limits and fixes the busbar 600.

[0042] Preferably, there are four pulling heads 102 and four locking clamps 104. When the four locking clamps 104 are deflected inward by ninety degrees, the ends of the four locking clamps 104 will squeeze the busbar 600, thereby achieving the effect of fixing the protection box 800 and the busbar 600 through the busbar locking structure 100.

[0043] The locking connector 500 includes a connector slot 501, a first roller 502 is disposed outside the connector slot 501, a self-locking head 504 is disposed inside the connector slot, and a conductive plug 503 is disposed between the self-locking heads 504;

[0044] The second rollers 505 are fixed on both sides of the first roller 502. The second rollers 505 are connected to the joint groove 501 through a connecting block 506. The second rollers 505 are also connected to the self-locking head 504 through a deflection cable 507.

[0045] The first roller 502 is used to receive one end of the busbar 600 , and the first roller 502 can be rotated by being pulled by the trigger cable 200 .

[0046] The connector slot 501 comprises a slot shell 501a, which is in an inverted U shape, and arc-shaped slots 501b are arranged on both sides of the slot shell 501a. The wire puller 504b is placed in the arc-shaped slot 501b.

[0047] Preferably, the slot housing 501a is provided with an arc groove 501b on one side facing the first roller 502, the arc groove 501b is an arc track, and the number of the arc groove 501b is the same as that of the self-locking head 504, both of which are provided with two. It should be noted that the arc groove 501b and the self-locking head 504 are axially symmetrical structures.

[0048] The conductive plug 503 has first inclined surfaces 503a on both sides of its upper end, a second inclined surface 503c below the first inclined surface 503a, and a clamping groove 503b at the lower end of the second inclined surface 503c. The clamping head 504a can be placed in the clamping groove 503b.

[0049] Preferably, the conductive plug 503 is also an axisymmetric structure, wherein the first inclined surface 503a is parallel to the fourth inclined surface 504d, the second inclined surface 503c is parallel to the third inclined surface 504e, and the clamping groove 503b is matched with the clamping head 504a.

[0050] A clamping head 504a is provided at the upper end of the self-locking head 504, a third inclined surface 504e is provided on the side of the self-locking head 504 facing the conductive plug 503, and a fourth inclined surface 504d is provided below the third inclined surface 504e; the self-locking head 504 is movably connected to the connector slot 501 through a second rotating shaft 504c; a pull wire head 504b is provided on the side of the self-locking head 504 that is in contact with the inner wall of the connector slot 501.

[0051] It should be noted that the connection between the second rotating shaft 504c and the slot housing 501a is close to the corner of the lower end of the slot housing 501a.

[0052] Preferably, the self-locking head 504 is connected to one end of the deflection pull wire 507 through the pull wire head 504 b, and the other end of the deflection pull wire 507 is placed in the groove of the second roller 505 .

[0053] Preferably, a torsion spring is provided at the second rotating shaft 504c.

[0054] The connector slot 501 , the conductive plug 503 and the self-locking head 504 are all made of metal and are conductive; the connecting block 506 and the deflection pull wire 507 are made of insulating material.

[0055] The guide joint 300 includes a U-shaped frame 301 , a rolling head 302 is provided inside the U-shaped frame 301 , and the rolling head 302 is movably connected to the U-shaped frame 301 .

[0056] Preferably, two rolling heads 302 are provided, and the distance between the two rolling heads 302 is enough for the trigger cable 200 to pass through, and rolling friction is generated between the rolling heads 302 and the trigger cable 200.

[0057] The lower end of the busbar 600 guides the direction of the busbar 600 branch line through the connecting frame 400; the connecting frame 400 includes a port joint 401, the outer side of the port joint 401 is connected to the support rod 403 through a ball shaft 402; the support rods 403 are movably connected; the support rod 403 and the branch line are bound by a clamp 404.

[0058] The number of the connection frames 400 is consistent with the number of the branches at the ports of the busbar 600 .

[0059] When in use, before handling the transformer wiring, first ensure that the power supply is completely turned off to avoid accidents; pass the busbar through the busbar locking structure 100 at the top of the protection box 800, and then apply glue to fix the movable ring 101 and the busbar 600 to ensure that the movable ring 101 will not fall off the busbar 600 when the busbar 600 is pulled;

[0060] Next, the connecting frame 400 is used to guide the branch line of the busbar 600 so that the conductive plug 503 at the end of the branch line is located below the joint slot 501, and the conductive plug 503 is inserted into the joint slot 501 from bottom to top. The conductive plug 503 will preferentially squeeze the self-locking head 504, causing the self-locking head 504 to deflect outward until the conductive plug 503 successfully passes through the self-locking head 504, and then the slot 503b will automatically fit the third inclined surface 504e under the action of gravity. Finally, one end of the trigger cable 200 is connected to the lower end of the pulling head 102, and the other end passes through the guide joint 300 in turn, and finally the other end of the trigger cable 200 is fixed on the first roller 502.

[0061] When the busbar 600 is pulled unexpectedly, the movable ring 101 will be pulled upward, and then the locking clamp 104 will lock the busbar 600; then, the pulling head 102 will also pull the trigger cable 200, causing the first roller 502 to rotate, and then the first roller 502 drives the second roller 505 to rotate as well, and the second roller 505 retracts and pulls the deflection pull wire 507, and the deflection pull wire 507 pulls the self-locking head 504 inward to deflect, and the third inclined surface 504e squeezes the card slot 503b to make the conductive plug 503 move upward, and finally the clamp 504a is clamped into the card slot 503b, and the top surface of the conductive plug 503 is against the top surface of the slot shell 501a, completing the locking work of the conductive plug 503 and the connector slot 501.

[0062] In summary, when the busbar 600 is accidentally dragged, the busbar locking structure 100 will quickly lock the connection between the busbar 600 and the protection box 800 to prevent the busbar 600 from being further pulled; at the same time, during the locking process of the busbar locking structure 100, the locking connector 500 will be triggered to firmly lock the conductive plug 503 inside the connector slot 501 to prevent the branch line and the transformer connector from falling off and causing an accident.

[0063] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0064] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0065] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dry-type transformer terminal bar support member that facilitates wiring, comprising a dry-type transformer and a protection box (800) for protecting the dry-type transformer; a busbar (600) for connecting the dry-type transformer and a control cabinet, and a support frame (700) for supporting the busbar (600) to a certain extent, wherein the support frame (700) is placed outside the protection box (800); Features: It comprises a busbar locking structure (100) disposed on the top surface of the protection box (800) and used to connect the protection box (800) and the busbar (600); when the busbar (600) is pulled, a locking clamp (104) in the busbar locking structure (100) will brake the busbar (600); A locking joint (500) is used to connect a branch line of the busbar (600) and a joint of a dry-type transformer, and when the busbar locking structure (100) brakes the busbar (600), the conductive plug (503) at the end of the branch line is locked by a self-locking head (504) in the locking joint (500); A trigger cable (200) is used to connect the busbar locking structure (100) and the locking joint (500), and the busbar locking structure (100) generates a pulling force on the locking joint (500) through the trigger cable (200); the trigger cable (200) is guided and limited on the busbar (600) through the guide joint (300); The busbar locking structure (100) comprises a movable collar (101) and a fixed collar (105); the movable collar (101) is not fixed to the top surface of the protection box (800), and the fixed collar (105) is fixed to the top surface of the protection box (800); the movable collar (101) and the fixed collar (105) are both sleeved on the busbar (600); the movable collar (101) is placed above the fixed collar (105); The lower end of the movable collar (101) is provided with a plurality of pulling heads (102), the lower end of the inner side of the pulling head (102) is provided with a rack (103), the rack (103) is meshed with driven gears (106) on both sides of the lower end of the locking chuck (104), and the two sides of the locking chuck (104) and the fixed collar (105) are movably connected via a shaft on one side of the driven gear (106); The locking joint (500) comprises a joint groove (501), a first roller (502) is provided on the outside of the joint groove (501), the self-locking head (504) is provided inside, and the conductive plug (503) is placed between the self-locking heads (504); Second rollers (505) are fixed on both sides of the first roller (502); the second roller (505) is connected to the joint groove (501) via a connecting block (506); the second roller (505) is also connected to the self-locking head (504) via a deflection pull wire (507); The first roller (502) is used to receive one end of the busbar (600), and the first roller (502) can be rotated by being pulled by the trigger cable (200); A clamping head (504a) is provided at the upper end of the self-locking head (504); a third inclined surface (504e) is provided on the side of the self-locking head (504) facing the conductive plug (503); a fourth inclined surface (504d) is provided below the third inclined surface (504e); the self-locking head (504) is movably connected to the connector slot (501) via a second rotating shaft (504c); and a wire pulling head (504b) is provided on the side of the self-locking head (504) that is in contact with the inner wall of the connector slot (501).

2. The wiring bar support for a dry-type transformer that is easy to wire as claimed in claim 1, characterized in that: The conductive plug (503) is provided with first inclined surfaces (503a) on both sides of the upper end, a second inclined surface (503c) is provided below the first inclined surface (503a), and a clamping groove (503b) is provided at the lower end of the second inclined surface (503c); the clamping head (504a) can be placed in the clamping groove (503b).

3. The wiring bar support for a dry-type transformer that is easy to wire as claimed in claim 1, characterized in that: The joint slot (501) comprises a slot shell (501a), the slot shell (501a) is in an inverted U shape, and arc-shaped slots (501b) are provided on both sides of the slot shell (501a); the wire pulling head (504b) is placed in the arc-shaped slot (501b).

4. The wiring bar support for a dry-type transformer that is easy to wire as claimed in claim 1, characterized in that: The joint slot (501), the conductive plug (503) and the self-locking head (504) are all made of metal and are conductive; the connecting block (506) and the deflection pull wire (507) are made of insulating material.

5. The wiring bar support for a dry-type transformer that is easy to wire as claimed in claim 1, characterized in that: The guide joint (300) comprises a U-shaped frame (301), a rolling head (302) is provided inside the U-shaped frame (301), and the rolling head (302) is movably connected to the U-shaped frame (301).

6. The wiring bar support for a dry-type transformer that is easy to wire as claimed in claim 1, characterized in that: The lower end of the busbar (600) guides the direction of the branch line of the busbar (600) through a connecting frame (400); the connecting frame (400) comprises a port joint (401); the outer side of the port joint (401) is connected to a support rod (403) through a ball shaft (402); the support rods (403) are movably connected to each other; the support rods (403) and the branch line are bound together by a clamp (404).

7. The wiring bar support for a dry-type transformer that is easy to wire as claimed in claim 6, characterized in that: The number of the connection frames (400) is consistent with the number of branches at the ports of the busbar (600).

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