Current transformer with locking mechanism

Abstract

The utility model discloses a current transformer with a locking mechanism and a current transformer assembly, the current transformer assembly comprises a first current ring, a second current ring, a mounting base, a supporting plate, a fixing shell and a mounting piece, the second current ring is hinged to one side of the top of the first current ring, and the second current ring is hinged to one side of the top of the first current ring. The mounting base is fixed on the front side and the rear side of the first current loop, the supporting plate is fixed on one side of the first current loop, the fixing shell is fixed on the top of the supporting plate, and the mounting piece is arranged in the fixing shell; and the locking assemblies are arranged on the front side and the rear side of the second current loop. The current transformer has the advantages that the first current ring and the second current ring are clamped conveniently through the current transformer assembly, the problem that a traditional clamping mode is tedious in use is solved, a line can be locked and fixed through the locking assembly, the situation that a cable falls off in the use process is prevented, and use stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, in particular to a current transformer with a locking mechanism. Background Art

[0002] The current transformer is based on the principle of electromagnetic induction. It consists of a closed iron core and windings. Its primary winding has a small number of turns and is connected in series with the current being measured. Therefore, it always carries the entire current of the line. The secondary winding has a larger number of turns and is connected in series with the measuring instrument and protection circuit. During operation, the secondary circuit is always closed, resulting in a very low impedance between the series coils of the measuring instrument and protection circuit, and the current transformer operates in a state close to a short circuit.

[0003] In actual use, common current transformers are circular devices in the middle. This causes the cables to easily shake inside the transformer during installation and use, and even cause them to fall off, thereby affecting the accuracy and stability of the measurement. Moreover, the locking mechanism of the current transformer is relatively complex when it is switched on and off, which is not convenient for quick installation, thus affecting the convenience of use. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the existing current transformer with a locking mechanism, the present utility model is proposed.

[0006] Therefore, the problem to be solved by the present invention is that the current transformer in the prior art is not convenient for locking and fixing the cable, and is not convenient for connecting and installing two current transformer rings.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a current transformer with a locking mechanism, comprising a current transformer assembly, including a first current loop, a second current loop, a mounting base, a support plate, a fixed shell and a mounting piece, wherein the second current loop is hinged to one side of the top of the first current loop, the mounting base is fixed to the front and rear sides of the first current loop, the support plate is fixed to one side of the first current loop, the fixed shell is fixed to the top of the support plate, and the mounting piece is arranged inside the fixed shell; and

[0008] A locking assembly is arranged on the front and rear sides of the second current loop, and includes an extension plate, a guide plate, and a driving member. The extension plate is fixed to the front and rear sides of the second current loop, the guide plate is arranged at the top and bottom of the extension plate, and the driving member is arranged inside the guide plate.

[0009] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the current transformer assembly further includes a retaining plate and a tooth plate, the retaining plate is fixed to one side of the second current loop, and the tooth plate is fixed to the bottom of the retaining plate.

[0010] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the current transformer assembly further includes a first spring group and a back plate, the first spring group is fixed to the bottom of the inner cavity of the fixed shell, and the back plate is fixed to the top of the first spring group.

[0011] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the mounting member includes a second spring group, a block and a pull rod, the second spring group is fixed to one side of the inner cavity of the fixed shell, the block is fixed to one side of the second spring group, the pull rod is fixed to one side of the block, and the end away from the block passes through the outside of the fixed shell.

[0012] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the current transformer assembly further includes a reinforcement block, which is fixed to the front and rear sides of the fixed shell, and the bottom is fixedly connected to the support plate.

[0013] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the driving part includes a bidirectional screw, a torsion block and a sliding rod, the bidirectional screw is arranged inside the extension plate, the torsion block is fixed to the top of the bidirectional screw, and the sliding rod is arranged inside the extension plate.

[0014] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the driving member further includes a third spring group, a clamping plate and a clamping slot, the third spring group is fixed to one side of the guide plate, the clamping plate is fixed to one side of the third spring group, and the clamping slot is opened on the surface of the clamping plate.

[0015] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the driving member also includes a limit rod and a positioning ring, the limit rod is fixed to one side of the clamping plate, and the other end passes through the outside of the guide plate and is fixedly connected to the positioning ring.

[0016] As a preferred solution of the current transformer with a locking mechanism described in the present invention, the material of the card plate is rubber, and the card slots are arranged in an array on the surface of the card plate.

[0017] As a preferred solution of the current transformer with a locking mechanism described in the utility model, the locking assembly further includes a reinforcing rib, which is fixed to one side of the extension plate and fixedly connected to the second current loop on the side close to the second current loop.

[0018] The beneficial effects of the utility model are: the current transformer component is used to facilitate the connection between the first current loop and the second current loop, solving the problem that the traditional connection method is more cumbersome to use; the locking component can lock and fix the line to prevent the cable from falling off during use, thereby improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is the overall structural diagram of the current transformer with a locking mechanism.

[0021] Figure 2 The expanded structure diagram of the current transformer with a locking mechanism.

[0022] Figure 3 A partial structural diagram of a current transformer with a locking mechanism.

[0023] Figure 4 For current transformers with locking mechanisms Figure 3 Enlarged structural diagram at point A in the middle.

[0024] Figure 5 This is a structural diagram of the driving component of a current transformer with a locking mechanism.

[0025] Numbers in the figure: 100, current transformer assembly; 101, first current loop; 102, second current loop; 103, mounting base; 104, support plate; 105, fixed shell; 106, mounting member; 106a, second spring group; 106b, clamping block; 106c, pull rod; 107, retaining plate; 108, tooth plate; 109, first spring group; 110, abutment plate; 111, reinforcement block; 200, locking assembly; 201, extension plate; 202, guide plate; 203, driving member; 203a, bidirectional screw; 203b, torsion block; 203c, slide rod; 203d, third spring group; 203e, clamping plate; 203f, clamping slot; 203g, limit rod; 203h, positioning ring; 204, reinforcing rib. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. 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.

[0028] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0029] Reference Figures 1 to 5 , which is the first embodiment of the present utility model, and this embodiment provides a current transformer with a locking mechanism. The current transformer with a locking mechanism includes a current transformer assembly 100 and a locking assembly 200. The current transformer assembly 100 facilitates the connection between the first current loop 101 and the second current loop 102, solving the problem that the traditional clamping method is relatively cumbersome to use. The locking assembly 200 can lock and fix the line to prevent the cable from falling off during use, thereby improving the stability of use.

[0030] The current transformer assembly 100 includes a first current loop 101, a second current loop 102, a mounting base 103, a support plate 104, a fixed shell 105 and a mounting member 106. The second current loop 102 is hinged to one side of the top of the first current loop 101, the mounting base 103 is fixed to the front and rear sides of the first current loop 101, the support plate 104 is fixed to one side of the first current loop 101, the fixed shell 105 is fixed to the top of the support plate 104, and the mounting member 106 is arranged inside the fixed shell 105.

[0031] The first current loop 101, the second current loop 102 and the mounting base 103 are prior arts, and are not described in detail in this solution. A person skilled in the art will be able to clearly understand the working principle. The support plate 104 facilitates support and fixation of the fixed shell 105, and the mounting member 106 facilitates the clamping connection between the second current loop 102 and the first current loop 101.

[0032] The locking assembly 200 is arranged on the front and rear sides of the second current loop 102, and includes an extension plate 201, a guide plate 202, and a driving member 203. The extension plate 201 is fixed to the front and rear sides of the second current loop 102, the guide plate 202 is arranged at the top and bottom of the extension plate 201, and the driving member 203 is arranged inside the guide plate 202.

[0033] The extension plate 201 facilitates the support of the driving member 203 , and the guide plate 202 facilitates the locking operation with the driving member 203 . Example

[0034] Reference Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0035] Specifically, the current transformer assembly 100 further includes a retaining plate 107 and a tooth plate 108 . The retaining plate 107 is fixed to one side of the second current loop 102 , and the tooth plate 108 is fixed to the bottom of the retaining plate 107 .

[0036] The retaining plate 107 facilitates fixing the tooth plate 108 , and the tooth plate 108 facilitates fixing the first current loop 101 and the second current loop 102 in cooperation with the mounting member 106 .

[0037] Specifically, the current transformer assembly 100 further includes a first spring group 109 and a butt plate 110 . The first spring group 109 is fixed to the bottom of the inner cavity of the fixed shell 105 , and the butt plate 110 is fixed to the top of the first spring group 109 .

[0038] The first spring assembly 109 and the abutment plate 110 cooperate to facilitate the ejection of the toothed plate 108 .

[0039] Specifically, the mounting member 106 includes a second spring group 106a, a block 106b and a pull rod 106c. The second spring group 106a is fixed to one side of the inner cavity of the fixed shell 105, the block 106b is fixed to one side of the second spring group 106a, and the pull rod 106c is fixed to one side of the block 106b, and the end away from the block 106b passes through the outside of the fixed shell 105.

[0040] By pulling the pull rod 106c to move the clamping block 106b to press the second spring group 106a, the tooth plate 108 can be inserted into the fixed shell 105, and then the pull rod 106c is released, and the second spring group 106c is reset to fix the clamping block 106b to the tooth plate 108.

[0041] Specifically, the current transformer assembly 100 further includes a reinforcement block 111 . The reinforcement block 111 is fixed to the front and rear sides of the fixed shell 105 , and the bottom of the reinforcement block 111 is fixedly connected to the support plate 104 .

[0042] The fixed connection between the reinforcement block 111 and the support plate 104 can improve the connection strength between the fixed shell 105 and the support plate 104 .

[0043] Specifically, the driving member 203 includes a bidirectional screw 203a, a torsion block 203b and a slide bar 203c. The bidirectional screw 203a is arranged inside the extension plate 201, the torsion block 203b is fixed to the top of the bidirectional screw 203a, and the slide bar 203c is arranged inside the extension plate 201.

[0044] By twisting the torsion block 203b, the bidirectional screw 203a is driven to rotate inside the extension plate 201, and the guide plate 202 moves relative to the surfaces of the bidirectional screw 203a and the sliding rod 203c.

[0045] Specifically, the driving member 203 further includes a third spring group 203d, a clamping plate 203e and a clamping slot 203f. The third spring group 203d is fixed to one side of the guide plate 202, the clamping plate 203e is fixed to one side of the third spring group 203d, and the clamping slot 203f is opened on the surface of the clamping plate 203e.

[0046] The third spring assembly 203d can enable the clamping plate 203e to elastically lock the cable, and cooperate with the clamping slot 203f to limit and fix the cable. Example

[0047] Reference Figure 5 , which is the third embodiment of the present utility model, and is based on the first two embodiments.

[0048] Specifically, the driving member 203 further includes a limiting rod 203g and a positioning ring 203h. The limiting rod 203g is fixed to one side of the clamping plate 203e, and the other end passes through the outside of the guide plate 202 and is fixedly connected to the positioning ring 203h.

[0049] By having the limiting rod 203 g penetrate through the outer side of the guide plate 202 , the stability of the clamping plate 203 e during movement can be improved, and the positioning ring 203 h can prevent the clamping plate 203 e from being separated from the guide plate 202 .

[0050] Specifically, the material of the card plate 203e is rubber, and the card slots 203f are arranged in an array on the surface of the card plate 203e.

[0051] The cable can be easily clamped through the clamping slot 203f, and the clamping plate 203e is made of rubber to prevent the cable from being worn when being locked.

[0052] Specifically, the locking assembly 200 further includes a reinforcing rib 204 . The reinforcing rib 204 is fixed to one side of the extension plate 201 , and the side close to the second current loop 102 is fixedly connected to the second current loop 102 .

[0053] The fixed connection between the reinforcing rib 204 and the second current loop 102 can improve the connection strength between the extension plate 201 and the second current loop 102 .

[0054] When in use, when the user needs to connect the second current loop 102 with the first current loop 101, first pull the pull rod 106c to move the clamping block 106b to squeeze the second spring group 106a, then the tooth plate 108 can be inserted into the fixed shell 105, and then release the pull rod 106c, and the second spring group 106c is reset to fix the clamping block 106b to the tooth plate 108. However, when the tooth plate 108 enters the fixed shell 105, it will press the abutment plate 110 and the first spring group. 109 is squeezed, and then when the cable needs to be locked, the cable is inserted between the first current loop 101 and the second current loop 102, and then the bidirectional screw 203a is rotated inside the extension plate 201 by twisting the twist block 203b to the bottom. At this time, the guide plate 202 moves relative to the surfaces of the bidirectional screw 203a and the sliding rod 203c. At this time, the card slot 203f in the card plate 203e is connected to the cable. At this time, the third spring group 203d will be compressed and retracted, playing an elastic contact, and then performing the locking effect.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. 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, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A current transformer with a locking mechanism, characterized in that: include, A current transformer assembly (100) comprises a first current loop (101), a second current loop (102), a mounting base (103), a support plate (104), a fixed shell (105) and a mounting member (106), wherein the second current loop (102) is hinged to one side of the top of the first current loop (101), the mounting base (103) is fixed to the front and rear sides of the first current loop (101), the support plate (104) is fixed to one side of the first current loop (101), the fixed shell (105) is fixed to the top of the support plate (104), and the mounting member (106) is arranged inside the fixed shell (105); and A locking assembly (200), the locking assembly (200) being arranged at the front and rear sides of the second current loop (102), comprising an extension plate (201), a guide plate (202), and a driving member (203), the extension plate (201) being fixed to the front and rear sides of the second current loop (102), the guide plate (202) being arranged at the top and bottom of the extension plate (201), and the driving member (203) being arranged inside the guide plate (202).

2. The current transformer with a locking mechanism according to claim 1, characterized in that: The current transformer assembly (100) further comprises a retaining plate (107) and a tooth plate (108), wherein the retaining plate (107) is fixed to one side of the second current loop (102), and the tooth plate (108) is fixed to the bottom of the retaining plate (107).

3. The current transformer with a locking mechanism according to claim 1, wherein: The current transformer assembly (100) further comprises a first spring group (109) and a butt plate (110), wherein the first spring group (109) is fixed to the bottom of the inner cavity of the fixed shell (105), and the butt plate (110) is fixed to the top of the first spring group (109).

4. The current transformer with a locking mechanism according to claim 1, wherein: The mounting member (106) includes a second spring group (106a), a block (106b) and a pull rod (106c), wherein the second spring group (106a) is fixed to one side of the inner cavity of the fixed shell (105), the block (106b) is fixed to one side of the second spring group (106a), and the pull rod (106c) is fixed to one side of the block (106b), and the end away from the block (106b) passes through the outside of the fixed shell (105).

5. The current transformer with a locking mechanism according to claim 1, characterized in that: The current transformer assembly (100) further includes a reinforcement block (111), wherein the reinforcement block (111) is fixed to the front and rear sides of the fixed shell (105), and the bottom is fixedly connected to the support plate (104).

6. The current transformer with a locking mechanism according to claim 1, characterized in that: The driving member (203) comprises a bidirectional screw (203a), a torsion block (203b) and a sliding rod (203c), wherein the bidirectional screw (203a) is arranged inside the extension plate (201), the torsion block (203b) is fixed to the top of the bidirectional screw (203a), and the sliding rod (203c) is arranged inside the extension plate (201).

7. The current transformer with a locking mechanism according to claim 6, characterized in that: The driving member (203) further comprises a third spring group (203d), a clamping plate (203e) and a clamping slot (203f); the third spring group (203d) is fixed to one side of the guide plate (202); the clamping plate (203e) is fixed to one side of the third spring group (203d); and the clamping slot (203f) is provided on the surface of the clamping plate (203e).

8. The current transformer with a locking mechanism according to claim 7, characterized in that: The driving member (203) further comprises a limiting rod (203g) and a positioning ring (203h); the limiting rod (203g) is fixed to one side of the clamping plate (203e), and the other end thereof passes through the outside of the guide plate (202) and is fixedly connected to the positioning ring (203h).

9. The current transformer with a locking mechanism according to claim 8, characterized in that: The material of the card plate (203e) is rubber, and the card slots (203f) are arranged in an array on the surface of the card plate (203e).

10. The current transformer with a locking mechanism according to claim 1, wherein: The locking assembly (200) further comprises a reinforcing rib (204), wherein the reinforcing rib (204) is fixed to one side of the extension plate (201) and is fixedly connected to the second current loop (102) on a side close to the second current loop (102).

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