Anti-interference current transformer

Abstract

The utility model discloses an anti-interference current transformer, which comprises a current transformer main body assembly, a positioning shell, a mounting plate, a current transformer body, a support plate and an auxiliary part, the mounting plate is arranged in the positioning shell, the current transformer body is mounted on the top of the mounting plate, and the current transformer body is mounted on the support plate. The supporting plates are fixed to the two sides of the top of the positioning shell, and the auxiliary parts are arranged on the tops of the supporting plates. And the anti-interference assembly is arranged in the positioning shell and comprises a fixing plate, a positioning rod and a buffer piece. The anti-interference current transformer has the beneficial effects that the current transformer body can be conveniently protected and anti-interference through the current transformer main body assembly, the influence of an external electromagnetic field on the current transformer can be effectively reduced, and the influence of vibration and the like of the current transformer body during working can be reduced through the anti-interference assembly; therefore, external interference when the current transformer body works is integrally reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, in particular to a current transformer with anti-interference function. 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] However, current current transformers are generally exposed when in use and are easily affected by external environmental factors, resulting in unstable operation of the current transformer. Moreover, existing current transformers are generally fixed in place directly by screws, and the equipment will vibrate during operation, which will cause the bolts to loosen and become unstable, making them easily affected, and there are certain safety hazards. 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 anti-interference function, 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 does not have anti-interference protection function.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a current transformer with anti-interference, comprising a current transformer main body assembly, including a positioning shell, a mounting plate, a current transformer body, a support plate and an auxiliary component, wherein the mounting plate is arranged inside the positioning shell, the current transformer body is mounted on the top of the mounting plate, the support plate is fixed to both sides of the top of the positioning shell, and the auxiliary component is arranged on the top of the support plate; and

[0008] The anti-interference component is arranged inside the positioning shell, and includes a fixing plate, a positioning rod and a buffer member. The fixing plate is fixed to the bottom of the inner cavity of the positioning shell, the positioning rod is fixed to the inside of the fixing plate, and the buffer member is arranged on the surface of the positioning rod.

[0009] As a preferred solution of the current transformer with anti-interference function described in the utility model, the auxiliary parts include an anti-interference cover, a block and a fixed shell, the anti-interference cover is hinged to the top of the support plate, the block is fixed to one side of the anti-interference cover, and the fixed shell is fixed to one side of the support plate.

[0010] As a preferred solution of the current transformer with anti-interference function described in the utility model, the auxiliary component also includes a first spring, an insert block and a pull rod. The first spring is fixed to the inside of the fixed shell, and one side is fixedly connected to the insert block. The pull rod is fixed to one side of the insert block, and one end passes through the outside of the fixed shell.

[0011] As a preferred solution of the current transformer with anti-interference function described in the utility model, the auxiliary component further includes a reinforcement block, which is fixed to the front and rear sides of the fixed shell, and one side of which is fixedly connected to the support plate.

[0012] As a preferred solution of the current transformer with anti-interference function of the utility model, the auxiliary component further includes an insert rod and a slot, the insert rod is fixed to the bottom of the anti-interference cover, and the slot is opened at the top of the positioning shell.

[0013] As a preferred solution of the current transformer with anti-interference function described in the utility model, the anti-interference component further includes a positioning plate and a mounting hole, the positioning plate is fixed on both sides of the positioning shell, and the mounting hole is opened inside the positioning plate.

[0014] As a preferred solution of the current transformer with anti-interference function described in the utility model, the anti-interference component also includes a retaining plate and a limiting rod, the retaining plate is fixed on both sides of the bottom of the mounting plate, and the limiting rod is arranged inside the retaining plate and the bottom is fixedly connected to the positioning shell.

[0015] As a preferred solution of the current transformer with anti-interference function described in the utility model, the anti-interference component also includes an extension plate and a third spring, the extension plate is fixed to the two ends of the positioning rod, and the bottom is fixedly connected to the positioning shell, and the third spring is fixed between the bottom of the retaining plate and the inside of the positioning shell.

[0016] As a preferred solution of the current transformer with anti-interference function of the utility model, the anti-interference component further includes a reinforcing rib, which is fixed to one side of the extension plate and has a bottom fixedly connected to the inner wall of the positioning shell.

[0017] As a preferred solution of the anti-interference current transformer described in the utility model, the buffer member includes a sliding plate, a second spring and a guide plate, the two sliding plates are both sleeved on the surface of the positioning rod, the second spring is fixed between the side of the sliding plate close to the fixed plate, one side of the guide plate is hinged to the sliding plate, and the other side is hinged to the mounting plate.

[0018] The beneficial effects of the utility model are as follows: the current transformer main body component is used to conveniently protect the current transformer body from interference, which can effectively reduce the influence of external electromagnetic fields on the current transformer. The anti-interference component can reduce the influence of vibration of the current transformer body during operation, thereby reducing the overall external interference when the current transformer body is working. 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 structure diagram of the current transformer with anti-interference function.

[0021] Figure 2 This is another perspective diagram of the overall structure of the current transformer with anti-interference function.

[0022] Figure 3 Expanded structural diagram of the anti-interference cover of the current transformer with anti-interference function.

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

[0024] Figure 5 This is a structural diagram of the buffer component of the current transformer with anti-interference function.

[0025] Numbers in the figure: 100, current transformer main body assembly; 101, positioning shell; 102, mounting plate; 103, current transformer body; 104, support plate; 105, auxiliary part; 105a, anti-interference cover; 105b, block; 105c, fixed shell; 105d, first spring; 105e, plug block; 105f, pull rod; 105g, reinforcement block; 105h, plug rod; 105i, slot; 200, anti-interference assembly; 201, fixed plate; 202, positioning rod; 203, buffer part; 203a, sliding plate; 203b, second spring; 203c, guide plate; 204, positioning plate; 205, mounting hole; 206, retaining plate; 207, limit rod; 208, extension plate; 209, third spring; 210, 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 anti-interference. The current transformer with anti-interference includes a main body component 100 and an anti-interference component 200. The current transformer main body component 100 facilitates the protection of the current transformer body 104 against interference, which can effectively reduce the influence of the external electromagnetic field on the current transformer. The anti-interference component 200 can reduce the influence of vibration and the like on the current transformer body 104 during operation, thereby reducing the external interference on the current transformer body 104 during operation as a whole.

[0030] The current transformer main body assembly 100 includes a positioning shell 101, a mounting plate 102, a current transformer body 103, a support plate 104 and an auxiliary part 105. The mounting plate 102 is arranged inside the positioning shell 101, the current transformer body 103 is installed on the top of the mounting plate 102, the support plate 104 is fixed on both sides of the top of the positioning shell 101, and the auxiliary part 105 is arranged on the top of the support plate 104.

[0031] The installation plate 102 facilitates the installation of the current transformer body 103 , and the positioning shell 101 facilitates the upward and downward movement of the installation plate 102 , and the support plate 104 facilitates the support of the auxiliary component 105 .

[0032] The anti-interference component 200 is arranged inside the positioning shell 101, including a fixing plate 201, a positioning rod 202 and a buffer 203. The fixing plate 201 is fixed to the bottom of the inner cavity of the positioning shell 101, the positioning rod 202 is fixed to the inside of the fixing plate 201, and the buffer 203 is arranged on the surface of the positioning rod 202.

[0033] The fixing plate 201 facilitates the support of the positioning rod 202 , and the buffer member 203 cooperates with the positioning rod 202 to enable the mounting plate 102 to vibrate elastically. Example

[0034] Reference 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 auxiliary component 105 includes an anti-interference cover 105a, a block 105b and a fixed shell 105c. The anti-interference cover 105a is hinged to the top of the support plate 104, the block 105b is fixed to one side of the anti-interference cover 105a, and the fixed shell 105c is fixed to one side of the support plate 104.

[0036] The anti-interference cover 105a protects the surface of the current transformer body 103, effectively reducing the impact of external electromagnetic fields on the current transformer, particularly interference from nearby high-power equipment. It provides physical isolation and shielding, protecting the transformer's internal circuits from external electromagnetic waves. The anti-interference cover 105a is secured by a clamping block 105b and a fixing shell 105c.

[0037] Specifically, the auxiliary component 105 also includes a first spring 105d, an insert block 105e and a pull rod 105f. The first spring 105d is fixed to the inside of the fixed shell 105c, and one side is fixedly connected to the insert block 105e. The pull rod 105f is fixed to one side of the insert block 105e, and one end passes through the outside of the fixed shell 105c.

[0038] The pull rod 105f drives the inserting block 105e to press the first spring 105d, and then the inserting block 105e is separated from the surface of the clamping block 105b, so that the anti-interference cover 105a can be opened.

[0039] Specifically, the auxiliary component 105 further includes a reinforcement block 105 g . The reinforcement block 105 g is fixed to the front and rear sides of the fixed shell 105 c , and one side of the reinforcement block 105 g is fixedly connected to the support plate 104 .

[0040] The fixed connection between the reinforcing block 105g and the support plate 104 can improve the connection strength between the fixed shell 105c and the support plate 104.

[0041] Specifically, the auxiliary component 105 further includes an inserting rod 105 h and a slot 105 i . The inserting rod 105 h is fixed to the bottom of the anti-interference cover 105 a , and the slot 105 i is opened at the top of the positioning shell 101 .

[0042] The insertion rod 105h and the slot 105i can assist in fixing the anti-interference cover 105a.

[0043] Specifically, the anti-interference component 200 further includes a positioning plate 204 and a mounting hole 205 . The positioning plate 204 is fixed to both sides of the positioning shell 101 , and the mounting hole 205 is opened inside the positioning plate 204 .

[0044] The positioning shell 101 can be fixedly installed by matching the positioning plate 204 with the mounting hole 205 .

[0045] Specifically, the anti-interference component 200 also includes a retaining plate 206 and a limiting rod 207. The retaining plate 206 is fixed to both sides of the bottom of the mounting plate 102. The limiting rod 207 is arranged inside the retaining plate 206 and the bottom is fixedly connected to the positioning shell 101.

[0046] The cooperation between the retaining plate 206 and the limiting rod 207 can improve the stability of the mounting plate 102 when floating up and down. Example

[0047] Reference Figure 3 and Figure 5 , which is the third embodiment of the present utility model, and is based on the first two embodiments.

[0048] Specifically, the anti-interference component 200 also includes an extension plate 208 and a third spring 209. The extension plate 208 is fixed at both ends of the positioning rod 202, and the bottom is fixedly connected to the positioning shell 101. The third spring 209 is fixed between the bottom of the retaining plate 206 and the inside of the positioning shell 101.

[0049] The extension plate 208 facilitates fixing of both ends of the positioning rod 202 , and the third spring 209 cooperates with the retaining plate 206 to provide auxiliary elasticity.

[0050] Specifically, the anti-interference component 200 further includes a reinforcing rib 210 . The reinforcing rib 210 is fixed to one side of the extension plate 208 , and the bottom thereof is fixedly connected to the inner wall of the positioning shell 101 .

[0051] The fixed connection between the reinforcing rib 210 and the positioning shell 101 can improve the fixed connection between the extension plate 208 and the positioning shell 101.

[0052] Specifically, the buffer member 203 includes a sliding plate 203a, a second spring 203b and a guide plate 203c. The two sliding plates 203a are both mounted on the surface of the positioning rod 202. The second spring 203b is fixed between the sliding plate 203a and one side of the fixed plate 201. One side of the guide plate 203c is hinged to the sliding plate 203a, and the other side is hinged to the mounting plate 102.

[0053] When the mounting plate 102 is vibrated, the guide plate 203c is driven to move. The guide plate 203c then drives the sliding plate 203a to squeeze and buffer the second spring 203b on the surface of the positioning rod 202, thereby achieving the effect of anti-vibration interference.

[0054] During use, the current transformer body 103 can first be installed on the surface of the mounting plate 102 by screws, and then the anti-interference cover 105a can drive the block 105b to align with the fixed shell 105c and move. At this time, the inclined surface of the block 105b will contact the plug block 105e, and the plug block 105e will be forced to squeeze the first spring 105d until the block 105b is fully inserted, completing the fixing work. The anti-interference cover 105a can effectively reduce the influence of external electromagnetic fields on the current transformer, especially the interference from neighboring high-power equipment. It can provide physical isolation and shielding to protect the internal circuit of the transformer from the influence of external electromagnetic waves. However, the vibration generated when the current transformer body 103 is working can cause the mounting plate 102 to drive the guide plate 203c to move. At this time, the guide plate 203c will drive the sliding plate 203a to squeeze and buffer the second spring 203b on the surface of the positioning rod 202, thereby achieving the effect of anti-vibration interference.

[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 anti-interference function, characterized in that: include, A current transformer main body assembly (100) comprises a positioning shell (101), a mounting plate (102), a current transformer body (103), a support plate (104) and an auxiliary component (105), wherein the mounting plate (102) is arranged inside the positioning shell (101), the current transformer body (103) is mounted on the top of the mounting plate (102), the support plate (104) is fixed to both sides of the top of the positioning shell (101), and the auxiliary component (105) is arranged on the top of the support plate (104); and An anti-interference component (200) is arranged inside the positioning shell (101), comprising a fixing plate (201), a positioning rod (202) and a buffer member (203), wherein the fixing plate (201) is fixed to the bottom of the inner cavity of the positioning shell (101), the positioning rod (202) is fixed to the inside of the fixing plate (201), and the buffer member (203) is arranged on the surface of the positioning rod (202).

2. The current transformer with anti-interference function according to claim 1, characterized in that: The auxiliary component (105) comprises an anti-interference cover (105a), a block (105b) and a fixed shell (105c), wherein the anti-interference cover (105a) is hinged to the top of the support plate (104), the block (105b) is fixed to one side of the anti-interference cover (105a), and the fixed shell (105c) is fixed to one side of the support plate (104).

3. The current transformer with anti-interference function according to claim 2, characterized in that: The auxiliary component (105) further includes a first spring (105d), an insert (105e) and a pull rod (105f), wherein the first spring (105d) is fixed inside the fixed shell (105c) and one side is fixedly connected to the insert (105e), and the pull rod (105f) is fixed to one side of the insert (105e) and one end passes through the outside of the fixed shell (105c).

4. The current transformer with anti-interference function according to claim 3, characterized in that: The auxiliary component (105) further comprises a reinforcement block (105g), wherein the reinforcement block (105g) is fixed to the front and rear sides of the fixed shell (105c), and one side of the reinforcement block is fixedly connected to the support plate (104).

5. The current transformer with anti-interference function according to claim 2, characterized in that: The auxiliary component (105) further comprises an inserting rod (105h) and a slot (105i), wherein the inserting rod (105h) is fixed to the bottom of the anti-interference cover (105a), and the slot (105i) is opened at the top of the positioning shell (101).

6. The current transformer with anti-interference function according to claim 1, characterized in that: The anti-interference component (200) further comprises a positioning plate (204) and a mounting hole (205), wherein the positioning plate (204) is fixed to both sides of the positioning shell (101), and the mounting hole (205) is opened inside the positioning plate (204).

7. The current transformer with anti-interference function according to claim 1, characterized in that: The anti-interference component (200) further includes a retaining plate (206) and a limiting rod (207), wherein the retaining plate (206) is fixed to both sides of the bottom of the mounting plate (102), and the limiting rod (207) is arranged inside the retaining plate (206) and the bottom is fixedly connected to the positioning shell (101).

8. The current transformer with anti-interference function according to claim 7, characterized in that: The anti-interference component (200) further includes an extension plate (208) and a third spring (209), wherein the extension plate (208) is fixed to both ends of the positioning rod (202), and the bottom is fixedly connected to the positioning shell (101), and the third spring (209) is fixed between the bottom of the retaining plate (206) and the interior of the positioning shell (101).

9. The current transformer with anti-interference function according to claim 8, characterized in that: The anti-interference component (200) further includes a reinforcing rib (210), wherein the reinforcing rib (210) is fixed to one side of the extension plate (208), and the bottom thereof is fixedly connected to the inner wall of the positioning shell (101).

10. The current transformer with anti-interference function according to claim 1, characterized in that: The buffer member (203) comprises a sliding plate (203a), a second spring (203b) and a guide plate (203c), wherein the two sliding plates (203a) are sleeved on the surface of the positioning rod (202), the second spring (203b) is fixed between one side of the sliding plate (203a) close to the fixed plate (201), and one side of the guide plate (203c) is hinged to the sliding plate (203a), and the other side is hinged to the mounting plate (102).

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