Transformer detection fixture and transformer detection system

Abstract

The present invention discloses a mutual inductor detection fixture and a mutual inductor detection system, including: a bearing member, a contact assembly and a first positioning member, wherein the first positioning member is provided with a first positioning hole, and the first positioning hole is used for the contact assembly to contact and cooperate with the detection contact when the first positioning hole is positioned and matched with the first positioning pin on the tray. In this way, through the bearing member, it is convenient for the contact assembly and the detection contact to be stably contacted and matched, which is beneficial for the detection personnel to perform stable detection on the mutual inductor. Since the bearing member is provided with the first positioning member and the first positioning member is provided with the first positioning hole, during the installation process of the mutual inductor detection fixture, the first positioning hole of the first positioning member is inserted into the first positioning pin on the tray. At this time, the contact assembly on the bearing member is in contact with the detection contact, so that the detection personnel can quickly complete the connection between the mutual inductor detection fixture and the detection contact on the mutual inductor, which is beneficial to improve the detection efficiency of the mutual inductor.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power detection, and in particular to a mutual inductor detection fixture and a mutual inductor detection system. Background Art

[0002] Instrument transformers, also known as instrument transformers, are a general term for current transformers and voltage transformers. They can convert high voltage into low voltage and high current into low current, and are used in measurement or protection systems. Their main function is to convert high voltage or high current into standard low voltage or standard low current in proportion, so as to achieve standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment.

[0003] Traditional transformers are equipped with multiple detection contacts. In the general detection process, the clamp is usually manually fixed on the transformer, and the wire clamp on the clamp is fixed on the bolt on the transformer to complete the transformer detection operation. However, the traditional clamp needs to manually fix the wire clamp on the bolt of the transformer, thus seriously reducing the detection efficiency of the transformer. Summary of the invention

[0004] Based on this, it is necessary to provide a transformer detection fixture and a transformer detection system, which can be quickly connected to the detection contacts on the transformer, which is conducive to improving the transformer detection efficiency.

[0005] The technical solution is as follows:

[0006] A transformer detection fixture comprises: a carrier; a contact assembly, which is mounted on the carrier and used to contact and cooperate with a detection contact on the transformer; and a first positioning member, which is mounted on the carrier and provided with a first positioning hole, which is used to contact and cooperate with a first positioning pin on a tray when the contact assembly contacts and cooperates with the detection contact.

[0007] The above-mentioned transformer detection fixture, through the bearing member, allows the contact assembly to be stably installed, which is convenient for the contact assembly and the detection contact to be stably contacted and matched, thereby facilitating the detection personnel to stably detect the transformer. Since the bearing member is provided with a first positioning member, and the first positioning member is provided with a first positioning hole, during the installation process of the transformer detection fixture, the first positioning hole of the first positioning member is inserted into the first positioning pin on the tray. At this time, the contact assembly on the bearing member is in contact with the detection contact, so that the detection personnel can quickly complete the connection between the transformer detection fixture and the detection contact on the transformer, thereby facilitating the detection efficiency of the transformer.

[0008] In one of the embodiments, the mutual inductor detection fixture further includes a first support member, and the first positioning member is mounted on the bearing member through the first support member.

[0009] In one embodiment, the mutual inductor detection fixture also includes a second support member and a second positioning member installed on the second support member, the first support member and the second support member are respectively installed on opposite sides of the bearing member, and the second positioning member is provided with a second positioning hole that cooperates with the second positioning pin on the tray.

[0010] In one of the embodiments, a protective member is provided on the carrier, the protective member is extended along the circumference of the carrier, and forms a protective groove with the carrier, and the contact end of the contact assembly is located in the protective groove.

[0011] In one of the embodiments, a resisting member is disposed on the bearing member, and the resisting member comprises a resisting surface, and the resisting surface is used for resisting and cooperating with the top surface of the mutual inductor.

[0012] In one of the embodiments, the mutual inductor detection fixture further includes a mounting member, the support member is provided with a first mounting hole, the contact assembly penetrates into the first mounting hole, and is mounted on the support member through the mounting member.

[0013] In one embodiment, the contact assembly includes a mounting seat, a contact piece, an elastic piece and a guide sleeve, the mounting seat is provided with a second mounting hole, the guide sleeve is arranged on the hole wall of the second mounting hole, the contact piece is installed in the guide sleeve through the elastic piece, and the contact piece can move elastically in the guide sleeve, and the contact piece is used to contact and cooperate with the detection contact.

[0014] In one embodiment, a first limiting portion and a second limiting portion are provided on the contact member at intervals, the first limiting portion is limitedly matched with the guide sleeve, a third limiting portion is provided in the guide sleeve, one end of the elastic member is connected to the second limiting portion, and the other end of the elastic member is connected to the third limiting portion.

[0015] In one embodiment, a gripper is provided on the carrier, and the gripper is used to cooperate with a gripper of a robot.

[0016] A mutual inductor detection system comprises a robot and the mutual inductor detection fixture described above, wherein the robot is used for grabbing the mutual inductor detection fixture.

[0017] The above-mentioned transformer detection system includes a robot and the above-mentioned transformer detection fixture. The transformer detection fixture is clamped and placed at the transformer by the robot, and then the contact component is stably installed through the carrier, so that the contact component and the detection contact can be stably contacted and matched, which is conducive to the detection personnel to stably detect the transformer. Since the carrier is provided with a first positioning member, and the first positioning member is provided with a first positioning hole, therefore, during the installation process of the transformer detection fixture, the first positioning hole of the first positioning member is inserted into the first positioning pin on the tray. At this time, the contact component on the carrier is in contact with the detection contact, so that the detection personnel can quickly complete the connection between the transformer detection fixture and the detection contact on the transformer, which is conducive to improving the detection efficiency of the transformer. In addition, the transformer detection system adopts a robot, and the transformer detection fixture is placed in the transformer or removed from the transformer by the robot, so that the transformer detection process is fully automated, which greatly liberates manual labor and is conducive to improving the detection efficiency of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the matching structure of the mutual inductor detection fixture and the mutual inductor according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a mutual inductor detection fixture according to an embodiment of the present invention;

[0020] Figure 3 It is an exploded schematic diagram of the structure of a mutual inductor detection fixture according to an embodiment of the present invention;

[0021] Figure 4 A cross-sectional view of a mutual inductor detection fixture structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a contact assembly according to an embodiment of the present invention;

[0023] Figure 6 for Figure 5 Cross-sectional view of the middle contact component along the AA direction;

[0024] Figure 7 It is an exploded schematic diagram of a contact assembly structure according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the cooperation between a mutual inductor and a tray according to an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 100, mutual inductor detection fixture, 110, bearing member, 111, first mounting hole, 120, first positioning member, 121, first positioning hole, 122, first support member, 130, second positioning member, 131, second positioning hole, 132, second support member, 140, contact assembly, 141, mounting seat, 1411, second mounting hole, 142, contact member, 1421, first limiting portion, 1422, second limiting portion Positioning portion, 143, guide sleeve, 1431, third limiting portion, 1432, resistance portion, 144, elastic member, 150, protective member, 151, protective groove, 160, resistance member, 161, resistance surface, 170, mounting member, 171, mounting groove, 180, insulating protective cover, 190, gripper, 191, guide pin, 200, mutual inductor, 210, detection contact, 300, tray, 310, first positioning pin. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0032] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 8A transformer detection fixture 100 includes: a carrier 110, a contact assembly 140 and a first positioning member 120. The contact assembly 140 is mounted on the carrier 110, and is used to contact and cooperate with a detection contact 210 on a transformer 200. The first positioning member 120 is mounted on the carrier 110, and is provided with a first positioning hole 121. When the first positioning hole 121 is used to position and cooperate with a first positioning pin 310 on a tray 300, the contact assembly 140 contacts and cooperates with the detection contact 210.

[0033] The above-mentioned transformer detection fixture 100, through the bearing member 110, allows the contact assembly 140 to be stably installed, so that the contact assembly 140 and the detection contact 210 can be stably contacted and matched, which is conducive to the detection personnel to stably detect the transformer 200. Since the first positioning member 120 is provided on the bearing member 110, and the first positioning member 120 is provided with a first positioning hole 121, therefore, during the installation process of the transformer detection fixture 100, the first positioning hole 121 of the first positioning member 120 is inserted into the first positioning pin 310 on the tray 300. At this time, the contact assembly 140 on the bearing member 110 is in contact with the detection contact 210, so that the detection personnel can quickly complete the connection between the transformer detection fixture 100 and the detection contact 210 on the transformer 200, which is conducive to improving the detection efficiency of the transformer 200. There are two ways to install the first positioning member 120 on the carrier 110: 1. The first positioning member 120 is directly installed on the carrier 110. At this time, the height of the first positioning member 120 needs to match the height of the mutual inductor 200 so that the first positioning pin 310 can penetrate the first positioning hole 121; 2. The first positioning member 120 is indirectly installed on the carrier 110 through a supporting structure, so that the first positioning member 120 is more likely to act on the first positioning pin 310, so that the mutual inductor detection fixture 100 is more convenient to install on the mutual inductor 200. Specifically in this embodiment, a copper sleeve is provided in the first positioning hole 121, and the copper sleeve makes the first positioning member 120 stably positioned on the tray 300, so that the contact assembly 140 and the detection contact 210 are more stably connected. At the same time, there are two contact assemblies 140, and the two contact assemblies 140 are installed on the carrier 110 at intervals.

[0034] Furthermore, the transformer detection fixture 100 further includes a first support member 122. The first positioning member 120 is mounted on the bearing member 110 through the first support member 122. It can be seen that the first positioning member 120 of this embodiment is indirectly mounted on the bearing member 110, so that the first positioning member 120 is more easily acted on the first positioning pin 310 through the first support member 122, so that the transformer detection fixture 100 is more convenient to install on the transformer 200. At the same time, through the first support member 122, the first positioning member 120 is also stably installed on the bearing member 110, which is conducive to improving the overall structural strength of the transformer detection fixture 100.

[0035] Furthermore, the transformer detection fixture 100 further includes a second support member 132 and a second positioning member 130 installed on the second support member 132. The first support member 122 and the second support member 132 are respectively installed on opposite sides of the carrier 110. The second positioning member 130 is provided with a second positioning hole 131 that is positioned and matched with the second positioning pin on the tray 300. It can be seen that the first support member 122, the second support member 132 and the carrier 110 form or approximately form a U-shaped structure. Through the U-shaped structure, the first support member 122 and the second support member 132 are respectively inserted along opposite sides of the transformer 200, so that the transformer detection fixture 100 is initially positioned during the installation process, and then the installation of the transformer detection fixture 100 is more quickly positioned in the transformer 200. At the same time, the first positioning hole 121 is positioned with the first positioning pin 310, and the second positioning hole 131 is positioned with the second positioning pin, so that the mutual inductor detection fixture 100 is more stable on the tray 300. Specifically in this embodiment, a copper sleeve is provided in the second positioning hole 131, and the second positioning member 130 is stably positioned on the tray 300 through the copper sleeve, so that the connection between the contact assembly 140 and the detection contact 210 is more stable. At the same time, the materials of the first support member 122 and the second support member 132 can be polyformaldehyde (abbreviated as pom), polyvinyl chloride (abbreviated as PVC), polycarbonate (abbreviated as PC) or other materials.

[0036] In one embodiment, a protective member 150 is provided on the carrier 110. The protective member 150 is extended along the circumference of the carrier 110, and forms a protective groove 151 with the carrier 110. The contact end of the contact assembly 140 is located in the protective groove 151. Since voltage breakdown or arc discharge may occur during the detection of the mutual inductor 200, it will cause certain safety hazards to the detection personnel. In this embodiment, a protective member 150 is provided around the carrier 110, and the protective member 150 is arranged around the contact end of the contact assembly 140. In this way, the personal safety of the detection personnel can be effectively protected by the protective member 150.

[0037] In one embodiment, please refer to Figure 4 and Figure 8 , a resisting member 160 is provided on the bearing member 110. The resisting member 160 includes a resisting surface 161, and the resisting surface 161 is used to resist and cooperate with the top surface of the mutual inductor 200. It can be seen that when the first positioning member 120 cooperates with the first positioning pin 310 through the first positioning hole 121, the contact assembly 140 contacts and cooperates with the detection contact 210. At the same time, the resisting member 160 on the bearing member 110 will resist and cooperate with the top surface of the mutual inductor 200 to prevent the contact assembly 140 from contacting the detection contact 210 too much and causing the contact assembly 140 or the detection contact 210 to be crushed. The resisting member 160 of this embodiment is equivalent to a limiting structure for the contact assembly 140, so that the contact assembly 140 and the detection contact 210 are in stable contact. Specifically in this embodiment, the abutment surface 161 is an arc surface, and the arc surface is arranged to fit the top surface of the transformer 200 . Thus, the transformer detection fixture 100 is more stably installed on the transformer 200 through the cooperation between the arc surface and the top surface of the transformer 200 .

[0038] In one embodiment, the mutual inductor detection fixture 100 further includes a mounting member 170. A first mounting hole 111 is provided on the carrier 110. The contact assembly 140 penetrates the first mounting hole 111 and is mounted on the carrier 110 through the mounting member 170. It can be seen that the contact assembly 140 of this embodiment is arranged through the carrier 110, so that the two ends of the contact assembly 140 are respectively located on both sides of the carrier 110. Since one end of the contact assembly 140 is used to contact the detection contact 210, and the other end of the contact assembly 140 is used to connect with an external detection device, therefore, in this embodiment, the contact assembly 140 is arranged through the carrier 110, so that the two ends of the contact assembly 140 are separated by the carrier 110, so as to facilitate the connection of the external detection device with the contact assembly 140, and avoid the maintenance personnel from being hit by the arc when connecting the external detection device. Specifically in this embodiment, in order to make the mounting member 170 and the contact assembly 140 more tightly connected, a mounting groove 171 is provided on the mounting member 170, and the contact assembly 140 penetrates into the mounting groove 171 and is connected to the mounting member 170 by bolts.

[0039] In one embodiment, please refer to Figures 5 to 7 The contact assembly 140 includes a mounting seat 141, a contact member 142, an elastic member 144 and a guide sleeve 143. The mounting seat 141 is provided with a second mounting hole 1411. The guide sleeve 143 is mounted on the hole wall of the second mounting hole 1411. The contact member 142 is mounted in the guide sleeve 143 through the elastic member 144, and the contact member 142 can be elastically moved in the guide sleeve 143, and the contact member 142 is used to contact and cooperate with the detection contact 210. It can be seen that when the first positioning hole 121 penetrates the first positioning pin 310, the contact member 142 contacts the detection contact 210. When the detection contact 210 on the transformer 200 protrudes more from the surface of the transformer 200, the contact piece 142 will be squeezed by the detection contact 210. Since the contact piece 142 can move elastically in the guide sleeve 143, the contact piece 142 moves in the guide sleeve 143 under the squeezing of the detection contact 210, and also maintains close contact with the detection contact 210, so as to perform relevant detection work. In this way, the contact assembly 140 of this embodiment can be suitable for transformers 200 of different models, thereby greatly facilitating the detection operation of the transformer 200. Specifically in this embodiment, the end of the guide sleeve 143 is provided with a resistance part 1432. When the guide sleeve 143 is inserted into the second mounting hole 1411, the resistance part 1432 is in friction with the end of the mounting seat 141. In this way, the contact assembly 140 is effectively prevented from being ejected by the detection contact 210.

[0040] Optionally, the guide sleeve 143 is installed on the mounting seat 141 in the following manner: the guide sleeve 143 is inserted into the second mounting hole 1411 and then fixed to the mounting seat 141 by bolts; or the guide sleeve 143 and the second mounting hole 1411 are interference fit or overfit.

[0041] Further, the contact member 142 is provided with a first limiting portion 1421 and a second limiting portion 1422 at intervals. The first limiting portion 1421 is limitedly matched with the guide sleeve 143. A third limiting portion 1431 is provided in the guide sleeve 143. One end of the elastic member 144 is connected to the second limiting portion 1422, and the other end of the elastic member 144 is connected to the third limiting portion 1431. It can be seen that the contact member 142 in this embodiment is installed in the guide sleeve 143 in the following manner: insert the contact member 142 into the guide sleeve 143; then support the contact member 142 on the guide sleeve 143 through the first limiting portion 1421; then, connect one end of the elastic member 144 to the second limiting portion 1422, and the other end of the elastic member 144 to the third limiting portion 1431, so that the contact member 142 is stably installed in the guide sleeve 143. Since one end of the contact member 142 is tensioned in the guide sleeve 143 through the elastic member 144, the contact member 142 can be elastically expanded and contracted in the guide sleeve 143. When the contact member 142 contacts the detection contact 210, the contact member 142 will be in closer contact with the detection contact 210 under the action of the elastic member 144, which is conducive to improving the reliability of the detection result of the mutual inductor 200. Among them, the elastic member 144 can be a spring or elastic rubber. Specifically in this embodiment, the elastic member 144 is a spring, which is sleeved on the contact member 142, and one end of the spring is connected to the second limit portion 1422, and the other end of the spring is connected to the third limit portion 1431.

[0042] Optionally, the first position limiting portion 1421 of this embodiment and the guide sleeve 143 can be limited and matched in the following ways: the first position limiting portion 1421 and the top of the guide sleeve 143 are limited and matched; or a protruding structure is provided on the inner wall of the guide sleeve 143, and the first position limiting portion 1421 and the protruding structure are limited and matched.

[0043] Optionally, the first limiting portion 1421 , the second limiting portion 1422 and the third limiting portion 1431 of the present embodiment are all washers or protruding structures; when the first limiting portion 1421 is a washer, the washer needs to be tightly sleeved on the contact member 142 .

[0044] In one embodiment, an insulating protective cover 180 is disposed outside the contact assembly 140. The insulating protective cover 180 can effectively prevent maintenance personnel from being electrocuted, which is helpful to ensure the personal safety of maintenance personnel.

[0045] In one embodiment, a gripper 190 is provided on the carrier 110, and the gripper 190 is used to cooperate with the gripper of the robot. Thus, the robot can stably grasp the mutual inductor detection fixture 100 through the gripper 190, so that the robot can quickly replace different types of fixtures. Specifically in this embodiment, a guide pin 191 is provided on the gripper 190.

[0046] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 8 A transformer 200 detection system includes a robot and the transformer detection fixture 100 in the above embodiment, and the robot is used to grab the transformer detection fixture 100.

[0047] The above-mentioned transformer 200 detection system includes a robot and the above-mentioned transformer detection fixture 100. The transformer detection fixture 100 is clamped and placed on the transformer 200 by the robot, and then the contact assembly 140 is stably installed through the carrier 110, so that the contact assembly 140 and the detection contact 210 can be stably contacted and matched, which is conducive to the detection personnel to stably detect the transformer 200. Since the first positioning member 120 is provided on the carrier 110, and the first positioning member 120 is provided with a first positioning hole 121, therefore, during the installation process of the transformer detection fixture 100, the first positioning hole 121 of the first positioning member 120 is inserted into the first positioning pin 310 on the tray 300. At this time, the contact assembly 140 on the carrier 110 is in contact with the detection contact 210, so that the detection personnel quickly completes the connection between the transformer detection fixture 100 and the detection contact 210 on the transformer 200, which is conducive to improving the detection efficiency of the transformer 200. In addition, the transformer 200 detection system adopts a robot, which places the transformer detection fixture 100 into the transformer 200 or removes it from the transformer 200, thereby making the transformer 200 detection process fully automated, greatly liberating manual labor and helping to improve the detection efficiency of the transformer 200.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A mutual inductor detection fixture, characterized in that: include: bearing member; A contact assembly, the contact assembly is mounted on the bearing member, and the contact assembly is used to contact and cooperate with a detection contact on the mutual inductor; A first positioning member, the first positioning member is mounted on the bearing member, the first positioning member is provided with a first positioning hole, and the first positioning hole is used for positioning and cooperating with a first positioning pin on the tray so that the contact assembly contacts and cooperates with the detection contact; A copper sleeve is provided in the first positioning hole, and the first positioning member is positioned on the tray through the copper sleeve; The contact assembly includes a mounting seat, a contact piece, an elastic piece and a guide sleeve. The mounting seat is provided with a second mounting hole. The guide sleeve is mounted on the hole wall of the second mounting hole. The contact piece is mounted in the guide sleeve through the elastic piece, and the contact piece can move elastically in the guide sleeve. The contact piece is used to contact and cooperate with the detection contact. The end of the guide sleeve is provided with a resistance part. When the guide sleeve is inserted into the second mounting hole, the resistance part is in resistance and cooperates with the end of the mounting seat.

2. The mutual inductor detection fixture according to claim 1, characterized in that: It also includes a first supporting member, and the first positioning member is installed on the bearing member through the first supporting member.

3. The mutual inductor detection fixture according to claim 2, characterized in that: It also includes a second support member and a second positioning member installed on the second support member. The first support member and the second support member are respectively installed on opposite sides of the carrier. The second positioning member is provided with a second positioning hole that cooperates with the second positioning pin on the tray.

4. The mutual inductor detection fixture according to claim 1, characterized in that: A protective member is provided on the bearing member, and the protective member is extended along the circumference of the bearing member and forms a protective groove with the bearing member. The contact end of the contact assembly is located in the protective groove.

5. The mutual inductor detection fixture according to claim 1, characterized in that: The bearing member is provided with a resisting member, and the resisting member comprises a resisting surface, and the resisting surface is used for resisting and cooperating with the top surface of the mutual inductor.

6. The mutual inductor detection fixture according to claim 1, characterized in that: It also includes a mounting member, the carrier is provided with a first mounting hole, the contact assembly penetrates the first mounting hole, and is mounted on the carrier through the mounting member.

7. The mutual inductor detection fixture according to claim 1, characterized in that: A first limiting portion and a second limiting portion are provided on the contact member at intervals, the first limiting portion is limitedly matched with the guide sleeve, a third limiting portion is provided in the guide sleeve, one end of the elastic member is connected to the second limiting portion, and the other end of the elastic member is connected to the third limiting portion.

8. The mutual inductor detection fixture according to any one of claims 1 to 6, characterized in that: The carrier is provided with a gripper, and the gripper is used to cooperate with the gripper of the robot.

9. A mutual inductor detection system, characterized in that: It comprises a robot and the mutual inductor detection fixture according to any one of claims 1 to 8, wherein the robot is used to grasp the mutual inductor detection fixture.

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