Capacitor temperature on-line monitoring device

Abstract

The utility model discloses a capacitor temperature on-line monitoring device, comprising a plastic cable tie, a sliding member slidably installed on the plastic cable tie, a connecting arm assembled on one side of the sliding member far away from the plastic cable tie, a sliding sleeve slidably sleeved on the connecting arm, and a temperature sensor assembled on the sliding sleeve, the plastic cable tie comprises a head part and a belt-shaped part, the cross section of the strip-shaped part is in an I shape, a strip-shaped clamping area is arranged on the side, close to the connecting arm, of the strip-shaped part, the two sides of the strip-shaped part are sunken to form a guide sliding groove, an insertion block part is arranged on the sliding piece, a clamping piece is arranged on the connecting arm, and the cross section of the insertion block part is smaller than the cross section of the guide sliding groove. The position of the sliding sleeve on the connecting arm can be adjusted, the sliding sleeve slides on the connecting arm to drive the temperature sensor to slide along the connecting arm, and the temperature sensor can be driven to make contact with any position of the side wall of the capacitor by adjusting the positions of the sliding piece and the sliding sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field related to capacitor monitoring, and in particular to an online capacitor temperature monitoring device. Background Art

[0002] Capacitors are components that store electrical charge and electrical energy (potential energy). A conductor surrounded by another conductor, or when all the electric field lines emitted by one conductor terminate in the conductor system of another conductor, is called a capacitor. In actual use of capacitors, the dielectric in the alternating electric field will experience energy loss. The greater the dielectric loss, the greater the heat. The value of small dielectric loss is often in the ten-thousandths range. Therefore, the degree of heat generation during normal use of capacitors is small. However, when the heating temperature suddenly increases, it indicates that there are hidden dangers in the capacitor itself. The most common reason is that internal leakage generates current and heat. The greater the leakage, the greater the heat generated. After reaching a certain limit, an explosion occurs. Therefore, real-time temperature monitoring of capacitors is required.

[0003] my country's utility model patent "A capacitor with a temperature monitor" with publication number CN214898110U discloses a capacitor with a temperature monitor. A rotating rod is set and twisted. A connecting wire is wrapped around the rotating rod. The sliding bar is pulled by the connecting wire to squeeze the spring to shrink into the U-shaped plate, so that the temperature monitor is pressed against the capacitor body and contacts with eight baffles. The rotating rod is released and the spring releases its elastic force to reset the sliding bar. The sliding bar presses against the rotating plate, so that the rotating plate rotates 90 degrees and contacts with the surface of the sliding bar. The position of the temperature monitor is locked, thereby achieving the effect of facilitating the installation and removal of the temperature monitor.

[0004] However, the above patent still has the following shortcomings: the position of the temperature detector cannot be adjusted, and the temperature detector can only monitor the temperature at a fixed position on the outer wall of the capacitor, and the position cannot be adjusted according to actual needs. Workers also often use plastic cable ties to tie the temperature sensor to the outer wall of the capacitor. After binding, the position of the temperature sensor cannot be adjusted. Therefore, it is necessary to design an online capacitor temperature monitoring device. Utility Model Content

[0005] In view of the above technical problems, the purpose of the present utility model is to overcome the problem in the prior art that the position of the temperature sensor cannot be adjusted and can only detect the temperature of a single position.

[0006] In order to achieve the above-mentioned object, the utility model provides an online temperature monitoring device for a capacitor, comprising: a plastic cable tie, a sliding member slidably mounted on the plastic cable tie, a connecting arm mounted on a side of the sliding member away from the plastic cable tie and having a length direction perpendicular to the length direction of the plastic cable tie, a sliding sleeve slidably mounted on the connecting arm, and a temperature sensor mounted on the sliding sleeve and capable of contacting an outer wall of the capacitor;

[0007] The plastic cable tie includes a head and a strip portion, the cross-section of the strip portion is an I-shape, a strip-shaped clamping area in the same length direction is provided on one side of the strip portion close to the connecting arm, both sides of the strip portion are recessed to form a guide slot, an insert block portion is provided on the sliding member, and a clamping member that can be detachably clamped to the strip-shaped clamping portion is provided on the connecting arm, and the cross-section of the insert block portion is smaller than the cross-section of the guide slot.

[0008] Preferably, the connecting arm is assembled on the sliding member via a hinge shaft whose length direction is perpendicular to the length direction of the connecting arm, and the hinge shaft is equipped with a torsion spring for pushing the connecting arm to rotate around the hinge shaft close to the plastic cable tie.

[0009] Preferably, a strip-shaped clamping portion with the same length direction is protruded on one side of the connecting arm away from the sliding member, and a clamping mechanism that can be detachably clamped with the strip-shaped clamping portion is mounted on the sliding sleeve.

[0010] Preferably, the clamping mechanism includes an auxiliary handle fixedly mounted on the sliding sleeve and away from the temperature sensor, a sliding arm sliding through the sliding sleeve along its own length direction, a clamping block fixedly mounted on the end of the sliding arm close to the strip clamping portion and capable of clamping with the strip clamping portion, an elastic member for pushing the clamping block close to the strip clamping portion for clamping, and a lifting handle fixedly mounted on the end of the sliding arm away from the clamping block, and the auxiliary handle is provided with a handle portion located at the lifting handle away from the sliding sleeve.

[0011] Preferably, the elastic member is a spring sleeved on the sliding arm, the end of the spring close to the strip-shaped clamping portion abuts against the clamping block, and the end of the spring away from the strip-shaped clamping portion abuts against the sliding sleeve.

[0012] Preferably, a cylindrical portion for accommodating the temperature sensor is provided on a side of the sliding sleeve away from the handle portion, and a mounting bolt having at least one end capable of abutting against the temperature sensor is threadedly mounted on a side wall of the cylindrical portion.

[0013] Preferably, the number of the inserting block parts in each guiding slide groove is two, and the two inserting block parts in each guiding slide groove are symmetrically distributed about the connecting arm.

[0014] According to the above technical solution, the utility model provides a capacitor temperature online monitoring device, which has the following beneficial effects when in use: first, the clamping piece is separated from the strip clamping area, and after adjusting the position of the sliding piece on the strip portion, the clamping piece is clamped with the strip clamping area, and the position of the sliding sleeve on the connecting arm can also be adjusted. The sliding sleeve slides on the connecting arm to drive the temperature sensor to slide along the connecting arm, and by adjusting the position of the sliding piece and the sliding sleeve, the temperature sensor can be driven to contact any position of the capacitor side wall;

[0015] Secondly, plastic cable ties can be tied to the outer wall of capacitors of any shape and have a wide range of applicability.

[0016] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode; and the parts not involved in the utility model are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of a capacitor temperature online monitoring device provided by the present invention;

[0019] Figure 2 This utility provides a capacitor temperature online monitoring device Figure 1 The enlarged schematic diagram of point A in the middle;

[0020] Figure 3 This utility provides a capacitor temperature online monitoring device Figure 1 The enlarged schematic diagram of point B in the middle;

[0021] Figure 4 It is a partial three-dimensional structural diagram of a capacitor temperature online monitoring device provided by the present invention.

[0022] Description of Reference Numerals

[0023] 1. Plastic cable tie; 2. Sliding part; 3. Connecting arm; 4. Sliding sleeve; 5. Temperature sensor; 6. Head; 7. Strip part; 8. Strip clamping area; 9. Guide slide groove; 10. Insert block part; 11. Clamping part; 12. Articulated shaft; 13. Torsion spring; 14. Strip clamping part; 15. Auxiliary handle; 16. Sliding arm; 17. Clamping block; 18. Elastic part; 19. Lifting handle; 20. Handle part; 21. Cylinder part; 22. Mounting bolt. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] In the present utility model, unless otherwise stated, directional words such as "upper, lower, inside, outside" contained in a term merely represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0026] like Figure 1-4 As shown, a capacitor temperature online monitoring device comprises: a plastic cable tie 1, a sliding member 2 slidably mounted on the plastic cable tie 1, a connecting arm 3 mounted on the side of the sliding member 2 away from the plastic cable tie 1 and having a length direction perpendicular to the length direction of the plastic cable tie 1, a sliding sleeve 4 slidably sleeved on the connecting arm 3, and a temperature sensor 5 mounted on the sliding sleeve 4 and capable of contacting the outer wall of the capacitor;

[0027] The plastic cable tie 1 includes a head 6 and a strip portion 7, the cross-section of the strip portion 7 is an I-shape, and a strip-shaped clamping area 8 in the same length direction is provided on the side of the strip portion 7 close to the connecting arm 3. Both sides of the strip portion 7 are recessed to form a guide groove 9, and an insert block portion 10 that is slidably inserted into the guide groove 9 is provided on the sliding member 2, and a clamping member 11 that can be detachably clamped with the strip-shaped clamping portion 14 is provided on the connecting arm 3, and the cross-section of the insert block portion 10 is smaller than the cross-section of the guide groove 9.

[0028] The end of the strip portion 7 of the plastic cable tie 1 can be inserted into the head 6, and by pulling the strip portion 7, the head 6 is unidirectionally slidably engaged with the strip-shaped engaging area 8, so that the plastic cable tie 1 can be fixed on the outer wall of the capacitor; the sliding member 2 can slide on the strip portion 7 to adjust the positions of the temperature sensor 5 and the connecting arm 3. When the plastic cable tie 1 is tied to the outside of the capacitor, the plastic cable tie 1 will also deform when encountering the bent portion of the outer wall of the capacitor to fit the outer wall of the capacitor, and the guide groove 9 corresponding to the bent portion of the outer wall of the capacitor will also deform and shrink. In order to enable the sliding member 2 to slide on the plastic cable tie 1 after the plastic cable tie 1 is tied to the outer wall of the capacitor, the cross-section of the insert portion 10 needs to be smaller than the cross-section of the guide groove 9, so that the sliding member 2 can slide on the bent plastic cable tie 1.

[0029] When the slider 2 needs to slide on the strip portion 7, the clamping member 11 is separated from the strip clamping area 8. After adjusting the position of the slider 2 on the strip portion 7, the clamping member 11 is clamped with the strip clamping area 8. The position of the sliding sleeve 4 on the connecting arm 3 can also be adjusted. The sliding sleeve 4 sliding on the connecting arm 3 can drive the temperature sensor 5 to slide along the connecting arm 3. By adjusting the position of the slider 2 and the sliding sleeve 4, the temperature sensor 5 can be driven to contact any position of the capacitor side wall.

[0030] The temperature sensor 5 may adopt wired transmission or wireless transmission to transmit the temperature information detected by the temperature sensor 5 to the control terminal.

[0031] The connecting arm 3 is assembled on the sliding member 2 via a hinge shaft 12 whose length direction is perpendicular to the length direction of the connecting arm 3 . The hinge shaft 12 is equipped with a torsion spring 13 for pushing the connecting arm 3 to rotate around the hinge shaft 12 close to the plastic cable tie 1 .

[0032] When it is necessary to adjust the position of the sliding member 2 on the strip portion 7, rotate the connecting arm 3 away from the capacitor, and the connecting arm 3 will rotate around the hinge axis 12, thereby driving the clamping member 11 to rotate around the hinge axis 12 away from the strip clamping area 8, so that the clamping member 11 is separated from the strip clamping area 8, and the temperature sensor 5 is separated from the outer wall of the capacitor; when the position adjustment of the sliding member 2 is completed, release the connecting arm 3, and the torsion spring 13 will rotate around the hinge axis 12 close to the capacitor through the connecting arm 3, thereby driving the clamping member 11 to rotate around the hinge axis 12 close to the strip clamping area 8, and when the clamping member 11 is clamped with the strip clamping area 8, the temperature sensor 5 will contact the outer wall of the capacitor.

[0033] A strip-shaped clamping portion 14 having the same length as the connecting arm 3 is protruded on one side away from the sliding member 2 , and a clamping mechanism that can be detachably clamped with the strip-shaped clamping portion 14 is mounted on the sliding sleeve 4 .

[0034] When the position of the sliding sleeve 4 on the connecting arm 3 needs to be adjusted, the clamping mechanism is separated from the strip clamping portion 14, and the sliding sleeve 4 can slide on the connecting arm 3 to adjust its position, driving the temperature sensor 5 to move. When the position adjustment of the sliding sleeve 4 is completed, the clamping mechanism is clamped with the strip clamping portion 14.

[0035] The clamping mechanism includes an auxiliary handle 15 fixedly mounted on the sliding sleeve 4 and away from the contact with the temperature sensor 5, a sliding arm 16 that slides through the sliding sleeve 4 along its own length direction, a clamping block 17 fixedly mounted on the end of the sliding arm 16 close to the strip clamping portion 14 and capable of clamping with the strip clamping portion 14, an elastic member 18 for pushing the clamping block 17 to clamp close to the strip clamping portion 14, and a lifting handle 19 fixedly mounted on the end of the sliding arm 16 away from the clamping block 17. The auxiliary handle 15 is provided with a handle portion 20 located at the lifting handle 19 away from the sliding sleeve 4.

[0036] When the position of the temperature sensor 5 needs to be adjusted, pinch the lifting handle 19 and the handle portion 20 with your hands, apply force to drive the lifting handle 19 to move closer to the handle portion 20, and the lifting handle 19 will drive the clamping block 17 to move through the sliding arm 16, so that the clamping block 17 is separated from the strip clamping portion 14; while keeping the clamping block 17 separated from the strip clamping portion 14, pull the lifting handle 19 and the handle portion 20 in the direction away from the capacitor, drive the connecting arm 3 to rotate around the hinge axis 12 away from the capacitor, so that the clamping part 11 is separated from the strip clamping area 8, and at this time the sliding part 2 can slide on the strip portion 7, and the sliding sleeve 4 can also slide on the connecting arm 3, so that the positions of the sliding part 2 and the sliding sleeve 4 can be adjusted at the same time.

[0037] When the adjustment is completed, release the lifting handle 19 and the handle portion 20, the torsion spring 13 will push the connecting arm 3 to rotate around the hinge axis 12, so that the clamping member 11 is clamped with the strip clamping area 8, and the elastic member 18 will push the clamping block 17 to move closer to the strip clamping portion 14, so that the clamping block 17 is clamped with the strip clamping portion 14.

[0038] The elastic member 18 is a spring sleeved on the slide arm 16 , and the end of the spring close to the strip-shaped clamping portion 14 contacts the clamping block 17 , and the end of the spring away from the strip-shaped clamping portion 14 contacts the slide sleeve 4 .

[0039] A cylindrical portion 21 for accommodating the temperature sensor 5 is disposed on a side of the sliding sleeve 4 away from the handle portion 20 , and a mounting bolt 22 having at least one end thereof abutting against the temperature sensor 5 is threadedly mounted on a side wall of the cylindrical portion 21 .

[0040] When the temperature sensor 5 needs to be replaced, the mounting bolts 22 are loosened, the temperature sensor 5 can be removed from the cylinder, a new temperature sensor 5 is installed in the installation cylinder, and the mounting bolts 22 are tightened.

[0041] There are two inserting blocks 10 in each guide slot 9 , and the two inserting blocks 10 in each guide slot 9 are symmetrically distributed with respect to the connecting arm 3 .

[0042] Because the cross-section of the block portion 10 is smaller than the cross-section of the guide slot 9, the block portion 10 will shake in the guide slot 9. When there are two block portions 10 in each guide slot 9, and the two block portions 10 are symmetrically distributed about the connecting arm 3, the shaking amplitude of the sliding member 2 can be reduced.

[0043] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0044] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0045] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A capacitor temperature online monitoring device, characterized in that: include: A plastic cable tie (1), a sliding member (2) slidably mounted on the plastic cable tie (1), a connecting arm (3) mounted on a side of the sliding member (2) away from the plastic cable tie (1) and having a length direction perpendicular to the length direction of the plastic cable tie (1), a sliding sleeve (4) slidably mounted on the connecting arm (3), and a temperature sensor (5) mounted on the sliding sleeve (4) and capable of contacting an outer wall of a capacitor; The plastic cable tie (1) comprises a head (6) and a strip portion (7), the cross section of the strip portion (7) is an I-shape, a strip-shaped clamping area (8) in the same length direction is provided on the side of the strip portion (7) close to the connecting arm (3), both sides of the strip portion (7) are recessed to form a guide groove (9), the sliding member (2) is provided with an insert block portion (10) which is slidably inserted into the guide groove (9), the connecting arm (3) is provided with a clamping member (11) which is detachably clamped with the strip-shaped clamping portion (14), and the cross section of the insert block portion (10) is smaller than the cross section of the guide groove (9).

2. The capacitor temperature online monitoring device according to claim 1, characterized in that: The connecting arm (3) is mounted on the sliding member (2) via a hinge shaft (12) whose length direction is perpendicular to the length direction of the connecting arm (3); the hinge shaft (12) is equipped with a torsion spring (13) for pushing the connecting arm (3) to rotate around the hinge shaft (12) close to the plastic cable tie (1).

3. The capacitor temperature online monitoring device according to claim 1, characterized in that: A strip-shaped clamping portion (14) with the same length direction is protruded on one side of the connecting arm (3) away from the sliding member (2), and a clamping mechanism that can be detachably clamped with the strip-shaped clamping portion (14) is mounted on the sliding sleeve (4).

4. The capacitor temperature online monitoring device according to claim 3 is characterized in that: The clamping mechanism comprises an auxiliary handle (15) fixedly mounted on the sliding sleeve (4) and away from the contact with the temperature sensor (5), a sliding arm (16) sliding through the sliding sleeve (4) along its own length direction, a clamping block (17) fixedly mounted on the end of the sliding arm (16) close to the strip clamping portion (14) and capable of clamping with the strip clamping portion (14), an elastic member (18) for pushing the clamping block (17) close to the strip clamping portion (14) for clamping, and a lifting handle (19) fixedly mounted on the end of the sliding arm (16) away from the clamping block (17), and the auxiliary handle (15) is provided with a handle portion (20) located at the lifting handle (19) away from the sliding sleeve (4).

5. The capacitor temperature online monitoring device according to claim 4, characterized in that: The elastic member (18) is a spring sleeved on the sliding arm (16); the end of the spring close to the strip-shaped clamping portion (14) contacts the clamping block (17), and the end of the spring away from the strip-shaped clamping portion (14) contacts the sliding sleeve (4).

6. The capacitor temperature online monitoring device according to claim 4, characterized in that: A cylindrical portion (21) for accommodating the temperature sensor (5) is provided on the side of the sliding sleeve (4) away from the handle portion (20), and a mounting bolt (22) having at least one end capable of abutting against the temperature sensor (5) is threadedly mounted on the side wall of the cylindrical portion (21).

7. The capacitor temperature online monitoring device according to claim 1, characterized in that: The number of the inserting block parts (10) in each guide sliding groove (9) is two, and the two inserting block parts (10) in each guide sliding groove (9) are symmetrically distributed with respect to the connecting arm (3).

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