Motor slip ring chamber temperature anomaly detection device

Abstract

The invention provides a motor slip ring chamber temperature anomaly detection device, and relates to the technical field of temperature detection.The motor slip ring chamber temperature anomaly detection device is characterized in that a six-edge vertical supporting shaft is welded to the position, close to a sponge block, of the outer wall of a protective cover, and a temperature detector is slidably installed on the six-edge vertical supporting shaft; two driving shafts are symmetrically installed at the top end of the side wall of the protective cover in a sliding mode through spring pushing, a connecting rod is rotationally installed in the middle of each driving shaft, and the head ends of the two connecting rods are rotationally connected with a temperature detector; when the protective cover and the motor shell are connected and installed, the rear side protruding parts of the two driving shafts abut against and make contact with the motor shell so as to reversely push and drive the temperature detector and the metal probe to downwards slide and be connected in an inserted mode. Through the power transmission of the two driving shafts, the pulling and inserting vacancy actions of the temperature detector and the metal probe can be automatically implemented by utilizing the pushing driving force generated when the protective cover and the motor shell are disassembled and assembled, and the operation and the use are simple and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of temperature detection, and in particular to a device for detecting abnormal temperature of a motor slip ring chamber. Background Art

[0002] The slip ring of the slip ring motor is composed of conductive ring, tail brush, brush holder, conductive rod, collector ring and slip ring cover. These components need to be placed in the slip ring chamber, and the slip ring chamber is connected to the rotor through a flange. The slip ring motor sometimes heats up during long-term operation, which may cause the slip ring and carbon brush to burn out in severe cases. It is very necessary to detect abnormal temperature in the slip ring chamber. A temperature detection device is required for the specific implementation of temperature detection.

[0003] The existing temperature detection device is mostly fixed on the side wall of the slip ring cover by threaded installation or directly built into the chamber inside the slip ring cover. The body or the probe component thereon is protruded from the inside of the slip ring chamber for a long time by the static limit of the thread. In order to prevent the temperature detection device and its probe from being damaged by the conductive ring or other components due to the sliding movement of the slip ring cover during the disassembly and assembly of the slip ring cover, the temperature detection device and its probe need to be removed in advance. However, when the threaded temperature detection device is loosened or disassembled, it needs to be screwed for multiple turns, and when the locking force is large, it needs to be implemented with the help of a wrench or other force-applying tools, which is troublesome and inconvenient to operate. In addition, although some temperature detection devices use movable sliding installation to flexibly avoid collision during the disassembly and assembly of the slip ring cover, the movable position action requires additional manual force to drive, and the operation is still relatively cumbersome and inconvenient. Summary of the invention

[0004] In view of this, the present invention provides a device for detecting abnormal temperature of a motor slip ring chamber, so as to solve the problem that although some temperature detection devices adopt movable sliding installation to flexibly avoid collision of parts during disassembly and assembly of the slip ring cover, the movable position movement requires additional manual force to drive, and the operation is still relatively cumbersome and inconvenient.

[0005] The technical solution proposed by the present invention is: a device for detecting abnormal temperature of a motor slip ring chamber, specifically comprising a protective cover, the protective cover is fixedly installed at the front end of the motor housing, and a chamber for containing the motor slip ring is formed between the protective cover and the motor housing; A sponge block with a central opening is embedded and installed on the outer wall of the protective cover, and a hexagonal vertical support shaft is welded on the outer wall of the protective cover near the sponge block, and a temperature detector is slidably installed on the hexagonal vertical support shaft; two driving shafts are symmetrically slidably installed at the top position of the side wall of the protective cover through spring pushing, and a connecting rod is rotatably installed on the middle part of the two driving shafts, and the head ends of the two connecting rods are rotatably connected to the temperature detector; A metal probe arranged with vertical supports is fixedly installed at the bottom of the temperature detector. The metal probe slides downward, penetrates the sponge block and is inserted into the inside of the protective cover. Under normal circumstances, the temperature detector and the metal probe are in a state of sliding upward and being pulled out of the sponge block. When the protective cover is connected and installed with the motor housing, the rear protruding parts of the two drive shafts are in contact with the motor housing to reversely drive the temperature detector and the metal probe to slide downward and be inserted.

[0006] Furthermore, An arc-shaped connecting plate is welded between the rear end parts of the two driving shafts, and the two driving shafts are in contact with the motor housing through the arc-shaped connecting plate.

[0007] Furthermore, A mounting ring is welded on the rear end opening of the protective cover, and two drive shafts slide through the mounting ring. An arc-shaped mounting groove is opened on the mounting ring between the two drive shafts. When the two drive shafts are reversely pushed and driven to slide forward, they are plugged into the arc-shaped mounting groove.

[0008] Furthermore, A Z-shaped slide plate is slidably installed on the hexagonal vertical support shaft, a square mounting block is welded to the top head end of the Z-shaped slide plate, and two horizontal force-bearing axes are symmetrically welded on the bottom horizontal part of the Z-shaped slide plate. The head ends of the two connecting rods are rotatably connected to the two horizontal force-bearing axes. Under normal conditions, the temperature detector is fixedly connected to the Z-shaped slide plate.

[0009] Furthermore, Two clamping plates are symmetrically fixed on the rear side of the temperature detector housing, and the square mounting block is plugged and matched with the two clamping plates.

[0010] Furthermore, The rear side of the shell of the temperature detector is located above the card plate, and a positioning slide rod is installed by a spring push-sliding mechanism. The positioning slide rod is in an L-structure, and an L-shaped plug rod is welded downward at the bend position of the head end, and the bottom horizontal part of the L-shaped plug rod passes through the card plate and is plugged into the square mounting block to position the square mounting block and the card plate.

[0011] Furthermore, A passive slide bar with an L-shaped structure is installed at the top end of the front side of the temperature detector housing through spring pushing and sliding, and a wire threading groove is opened through the longitudinal support part of the passive slide bar.

[0012] Furthermore, The signal wire and the power wire on the temperature detector are matched with the threading groove, and the head end of the longitudinal support part of the passive slide bar is inserted into the interval space between the bending part of the positioning slide bar and the shell of the temperature detector.

[0013] Furthermore, When the passive sliding rod is pulled by the signal line and the power line to slide away from the temperature detector, it is used to push and drive the positioning sliding rod and the L-shaped plug rod to be pulled out and release the temperature detector.

[0014] The present invention provides a device for detecting abnormal temperature of a motor slip ring chamber, which has the following beneficial effects: When the present invention is in use, the temperature detector is installed in a movable sliding manner. The metal probe can be pulled out of the empty space inside the protective cover by simply lifting and sliding it. Compared with the prior art in which the temperature detector is set as a threaded installation, the tedious action of tightening and loosening with multiple turns can be avoided, and the trouble of requiring the help of an external force tool to implement normal tightening and loosening can be eliminated. The operation of avoiding the empty space of the temperature detector and the metal probe is simple and convenient.

[0015] In addition, through the power transmission of the two drive shafts, the insertion and withdrawal of the temperature detector and the metal probe can be automatically implemented by utilizing the pushing driving force generated when the protective cover and the motor housing are disassembled and assembled. This saves the trouble of requiring additional manual effort to insert and withdraw the temperature detector and the metal probe every time the protective cover is disassembled and assembled, and is easy to operate and use.

[0016] In addition, driving the positioning slide rod and the L-shaped insertion rod to slide away from the temperature detector can pull out and loosen the temperature detector, so that the temperature detector and the metal probe can be separated from the Z-shaped slide plate and freely slide up and down and move relative to the sponge block to implement wiping and cleaning, thereby preventing the temperature detector from being fixed on the Z-shaped slide plate and unable to slide and clean at any time. This helps to ensure that the temperature detector has the function of automatically pulling out and inserting an empty space, while being compatible with the free wiping and cleaning function of the metal probe, and the use effect is better.

[0017] In addition, when the temperature detector is driven to automatically move up and down, and the signal line and the power line are entangled with the surrounding parts and are limited, the passive slide bar, the positioning slide bar and the L-shaped plug rod can be pulled by the signal line and the power line to drive them to slide away from the temperature detector, pull out and loosen the square mounting block, disconnect the power connection between the temperature detector and the Z-shaped slide plate, remove the traction force of the Z-shaped slide plate on the signal line and the power line, prevent the Z-shaped slide plate from continuously sliding and breaking the signal line and the power line, and provide anti-tear protection for the signal line and the power line.

[0018] In addition, through the power transmission of the passive slide bar, the temperature detector can be triggered by the pulling force on the signal line and the power line to decouple the Z-shaped slide plate from the self-tripping power, and the signal line and the power line can be protected from tearing. This makes the tripping and tearing protection function of the temperature detector automatically triggered, without manual participation and on-duty, and is easy to operate. In addition, when the signal line and the power line are torn and pulled, they can quickly transfer the pulling force to the positioning slide bar, triggering the temperature detector and the Z-shaped slide to release in time to provide anti-tear protection for the signal line and the power line. This makes the tripping anti-tear function have better timeliness, which can timely suppress the tearing damage to the signal line and the power line, and the anti-tear protection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture: Figure 1 The overall front side structural schematic diagram of the present invention is shown; Figure 2 The overall rear side structure schematic diagram of the present invention is shown; Figure 3 A schematic diagram showing a disassembled state of the drive shaft of the present invention is shown; Figure 4 A schematic diagram of the structure of the temperature detector of the present invention is shown; Figure 5 A schematic diagram of the rear structure of the temperature detector of the present invention is shown; Figure 6 A schematic diagram showing a disassembled state of the temperature detector of the present invention is shown; Figure 7 A schematic diagram of the card board structure of the present invention is shown; Figure 8 A schematic diagram showing the disassembly and assembly state of the positioning slide bar of the present invention is shown; Fig. 9 A schematic diagram of the bottom structure of the temperature detector of the present invention is shown; Reference numerals list 1. Protective cover; 101. Hexagonal vertical support shaft; 102. Wire groove; 103. Arc-shaped installation groove; 104. Z-shaped slide plate; 105. Square installation block; 106. Sponge block; 2. Filter; 3. driving shaft; 301. arc-shaped connecting plate; 302. connecting rod; 4. Temperature detector; 401. Metal probe; 402. Passive slide bar; 403. Threading groove; 404. Positioning slide bar; 405. L-shaped plug rod; 406. Card plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0023] An embodiment of the present invention is provided, please refer to Figures 1 to 9 : The present invention proposes a device for detecting abnormal temperature of a motor slip ring chamber, comprising a protective cover 1, which is fixedly mounted on the front end of a motor housing, and a chamber for containing motor slip rings is formed between the protective cover 1 and the motor housing, and a wire passing groove 102 is opened on the side wall of the protective cover 1; Among them, a sponge block 106 with a central opening is embedded and installed on the outer wall of the protective cover 1, and a hexagonal vertical support shaft 101 is welded on the outer wall of the protective cover 1 near the sponge block 106, and a temperature detector 4 is slidably installed on the hexagonal vertical support shaft 101; two drive shafts 3 are symmetrically slidably installed at the top position of the side wall of the protective cover 1 through spring pushing, and a connecting rod 302 is rotatably installed on the middle part of the two drive shafts 3, and the head ends of the two connecting rods 302 are rotatably connected to the temperature detector 4, so that when the protective cover 1 is inserted, disassembled and assembled, The metal probe 401 needs to slide upward and be pulled out of the empty space from the protective cover 1 to avoid being damaged by collision. The temperature detector 4 is installed by movable sliding. The metal probe 401 can be pulled out of the empty space from the inside of the protective cover 1 by just lifting and sliding it upward. Compared with the prior art in which the temperature detector 4 is set as a threaded installation, the cumbersome action of tightening and tightening multiple times can be avoided, and the trouble of using an external force tool to implement normal tightening can be eliminated. The operation of avoiding the empty space of the temperature detector 4 and the metal probe 401 is simple and convenient. A metal probe 401 arranged with a vertical support is fixedly installed at the bottom of the temperature detector 4. The metal probe 401 slides downward and penetrates the sponge block 106 and is inserted into the inside of the protective cover 1; under normal conditions, the temperature detector 4 and the metal probe 401 are in a state of sliding upward and being pulled away from the sponge block 106. When the sponge block 106 and the metal probe 401 slide relative to each other, they are used to frictionally clean the dust on the metal probe 401; two connecting rods 302, Z-shaped slide plates 104 and two driving shafts 3 are connected together to form two crank slider mechanisms, through which the two driving shafts 3 can slide back and forth to push and drive the Z-shaped slide plates 104 and the temperature detector 4 to move up and down and reset; when the protective cover 1 is connected and installed with the motor housing, the rear protruding parts of the two driving shafts 3 are connected with the motor housing. The motor housing is in contact with each other and is driven to slide forward by the reverse push, and the temperature detector 4 is controlled to slide down automatically to reset the metal probe 401 and insert it into the protective cover 1. When the protective cover 1 is disassembled and separated from the motor housing, the two drive shafts 3 lose the forward push holding force from the motor housing and are pushed backward by the two springs thereon to slide, and the temperature detector 4 and the metal probe 401 are controlled to slide upward automatically to separate from the protective cover 1. Then, through the power transmission of the two drive shafts 3, the insertion and withdrawal action of the temperature detector 4 and the metal probe 401 can be automatically implemented by the push driving force generated when the protective cover 1 and the motor housing are disassembled and assembled. This saves the trouble of additional manual effort to insert and withdraw the temperature detector 4 and the metal probe 401 each time the protective cover 1 is disassembled and assembled, and the operation is simple and easy to use. A detachable filter screen 2 is installed on the front opening of the protective cover 1, and both the protective cover 1 and the filter screen 2 are circular structures; a circular mounting hole is opened through the top position of the circumferential side wall of the protective cover 1, and the sponge block 106 is embedded and plugged into the circular mounting hole and fixed in the circular mounting hole by Velcro.

[0024] Preferably, An arc-shaped connecting plate 301 is welded between the rear end portions of the two driving shafts 3 , and the two driving shafts 3 are in contact with the motor housing via the arc-shaped connecting plate 301 .

[0025] Preferably, A mounting ring is welded on the rear end opening of the protective cover 1, and the two drive shafts 3 are slidably fitted with the mounting ring. An arc-shaped mounting groove 103 is opened on the mounting ring between the two drive shafts 3. When the two drive shafts 3 are reversely pushed and driven to slide forward, they are plugged into the arc-shaped mounting groove 103.

[0026] Preferably, A Z-shaped slide plate 104 is slidably mounted on the hexagonal vertical support shaft 101, a square mounting block 105 is welded to the top head end of the Z-shaped slide plate 104, and two horizontal force-bearing axes are symmetrically welded to the bottom horizontal part of the Z-shaped slide plate 104, the head ends of the two connecting rods 302 are rotatably connected to the two horizontal force-bearing axes, and under normal conditions, the temperature detector 4 is fixedly connected to the Z-shaped slide plate 104.

[0027] Preferably, Two clamping plates 406 are symmetrically fixed to the rear side of the housing of the temperature detector 4 , and the square mounting block 105 is plugged into and matched with the two clamping plates 406 .

[0028] Preferably, The rear side of the shell of the temperature detector 4 is located above the card plate 406, and a positioning slide bar 404 is installed by a spring push and sliding. The positioning slide bar 404 is in an L-structure, and an L-shaped plug rod 405 is welded downward at the bending position of the head end, and the bottom horizontal part of the L-shaped plug rod 405 passes through the card plate 406 and is plugged into and matched with the square mounting block 105, which is used to position the square mounting block 105 and the card plate 406. The temperature detector 4 and the Z-shaped slide plate 104 are detachable and installed. The positioning slide bar 404 and the L-shaped plug rod 405 are driven to slide away from the temperature detector 4 to remove and loosen the temperature detector 4, so that the temperature detector 4 and the metal probe 401 can be separated from the Z-shaped slide plate 104 and slide up and down freely, and move relative to the sponge block 106 to wipe and clean, so as to avoid the temperature detector 4 being fixed on the Z-shaped slide plate 104 and unable to slide and clean at any time. This helps to ensure that the temperature detector 4 can automatically pull out and insert the empty space function and is compatible with the free wiping and cleaning function of the metal probe 401, and the use effect is better.

[0029] Preferably, A passive slide bar 402 with an L-shaped structure is installed at the top front position of the housing of the temperature detector 4 through a spring push-pull sliding, and a wire threading groove 403 is opened through the longitudinal support part of the passive slide bar 402.

[0030] Preferably, The signal line and the power line on the temperature detector 4 are threaded and matched with the threading groove 403. Through the threading groove 403, the signal line and the power line can be pulled to drive the passive slide bar 402 to slide away from the temperature detector 4. The head end of the longitudinal support part of the passive slide bar 402 is inserted into the interval space between the bending part of the positioning slide bar 404 and the outer shell of the temperature detector 4. The bending part of the positioning slide bar 404 is in contact with the head end of the longitudinal support part of the passive slide bar 402. Through the power transmission of the bending part of the positioning slide bar 404, the passive slide bar 402 can push the positioning slide bar 404 and the L-shaped plug 405 to be separated from the square mounting block 105 when sliding away from the temperature detector 4.

[0031] Preferably, When the temperature detector 4 is driven to automatically move up and down, and the signal line and the power line are entangled with the surrounding parts and are limited, the passive slide bar 402, the positioning slide bar 404 and the L-shaped plug rod 405 can be pulled and driven by the signal line and the power line to slide away from the temperature detector 4, and the square mounting block 105 is pulled out and loosened, so as to disconnect the power connection between the temperature detector 4 and the Z-shaped slide plate 104, and remove the traction force of the Z-shaped slide plate 104 on the signal line and the power line, so as to avoid the Z-shaped slide plate 104 from continuously sliding and breaking the signal line and the power line, thereby implementing anti-tearing protection for the signal line and the power line; Through the power transmission of the passive slide bar 402, the temperature detector 4 can be triggered by the pulling force on the signal line and the power line to self-trip and decouple from the Z-shaped slide plate 104, and the signal line and the power line are protected from tearing, which makes the tripping and anti-tearing protection function of the temperature detector 4 automatically triggered, without manual participation and on-duty, and easy to operate and use; In addition, when the signal line and the power line are torn and pulled, they can quickly transfer the pulling force to the positioning slide bar 404, triggering the temperature detector 4 and the Z-shaped slide 104 to release in time to provide anti-tear protection for the signal line and the power line. This makes the tripping and anti-tear function have better timeliness, and can timely suppress the tearing damage to the signal line and the power line, and the anti-tear protection effect is better.

[0032] Working principle: When the protective cover 1 is inserted, removed, or assembled, the metal probe 401 needs to slide upwards and be pulled out of the protective cover 1 to avoid being damaged by collision. The temperature detector 4 is installed by movable sliding. The metal probe 401 can be pulled out of the protective cover 1 by simply lifting and sliding it upwards. The two connecting rods 302, the Z-shaped slide plate 104 and the two driving shafts 3 are connected together to form two crank slider mechanisms. Through these two mechanisms, the two driving shafts 3 can slide forward and backward to push and drive the Z-shaped slide plate 104 and the temperature detector 4 to move up and down to an empty position and reset; when the protective cover 1 is connected and installed with the motor housing, the rear side protruding parts of the two driving shafts 3 are in contact with the motor housing and are pushed back to slide forward, and the temperature detector 4 is controlled to automatically slide down to reset the metal probe 401 and insert it into the protective cover 1. When the protective cover 1 is disassembled and separated from the motor housing, the two driving shafts 3 lose the forward pushing holding force from the motor housing, and will be pushed backward by the two springs thereon to slide, and control the temperature detector 4 and the metal probe 401 to automatically slide upward to separate from the protective cover 1. When the sponge block 106 slides relative to the metal probe 401, it is used to clean the dust on the metal probe 401 by friction. The bottom horizontal part of the L-shaped plug rod 405 passes through the card plate 406 and is plugged into the square mounting block 105 to position the square mounting block 105 and the card plate 406. The positioning slide bar 404 and the L-shaped plug rod 405 are driven to slide away from the temperature detector 4 to remove and release the temperature detector 4, so that the temperature detector 4 and the metal probe 401 can be separated from the Z-shaped slide plate 104 and slide up and down freely to move relative to the sponge block 106 to wipe and clean without being interfered by the Z-shaped slide plate 104. When the temperature detector 4 is driven to automatically move up and down, and the signal line and the power line are entangled with the surrounding parts and are limited, the passive slide bar 402, the positioning slide bar 404 and the L-shaped plug rod 405 can be pulled by the signal line and the power line to slide away from the temperature detector 4, and the square mounting block 105 is pulled out and loosened, thereby disconnecting the power connection between the temperature detector 4 and the Z-shaped slide plate 104, and removing the traction force of the Z-shaped slide plate 104 on the signal line and the power line, so as to prevent the Z-shaped slide plate 104 from continuously sliding and tearing and damaging the signal line and the power line.

[0033] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0034] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A device for detecting abnormal temperature of a motor slip ring chamber, comprising: A protective cover (1), the protective cover (1) being fixedly mounted on the front end of the motor housing and forming a chamber for containing the motor slip ring between the protective cover and the motor housing; The invention is characterized in that a sponge block (106) with a central opening is embedded and installed on the outer wall of the protective cover (1), and a hexagonal vertical support shaft (101) is welded on the outer wall of the protective cover (1) near the sponge block (106), and a temperature detector (4) is slidably installed on the hexagonal vertical support shaft (101); two drive shafts (3) are symmetrically slidably installed at the top position of the side wall of the protective cover (1) through spring pushing, and a connecting rod (302) is rotatably installed on the middle part of each of the two driving shafts (3), and the head ends of the two connecting rods (302) are rotatably connected to the temperature detector (4); A metal probe (401) arranged in a vertical support is fixedly mounted at the bottom of the temperature detector (4), and the metal probe (401) slides downward to penetrate the sponge block (106) and is inserted into the interior of the protective cover (1); under normal conditions, the temperature detector (4) and the metal probe (401) are in a state of sliding upward and being separated from the sponge block (106); when the protective cover (1) is connected and installed with the motor housing, the rear protruding parts of the two drive shafts (3) are in contact with the motor housing to reversely drive the temperature detector (4) and the metal probe (401) to slide downward and be inserted.

2. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 1, characterized in that: An arc-shaped connecting plate (301) is welded between the rear end portions of the two drive shafts (3), and the two drive shafts (3) are in abutment contact with the motor housing via the arc-shaped connecting plate (301).

3. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 1, characterized in that: A mounting ring is welded on the rear end opening of the protective cover (1), the two drive shafts (3) penetrate and slide with the mounting ring, and an arc-shaped mounting groove (103) is opened on the mounting ring at a position between the two drive shafts (3), and the two drive shafts (3) are plugged into and fit with the arc-shaped mounting groove (103) when they are reversely pushed and driven to slide forward.

4. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 1, characterized in that: A Z-shaped slide plate (104) is slidably mounted on the hexagonal vertical support shaft (101), a square mounting block (105) is welded to the top head end of the Z-shaped slide plate (104), and two horizontal force-bearing shafts are symmetrically welded to the bottom horizontal portion of the Z-shaped slide plate (104), the head ends of the two connecting rods (302) are rotatably connected to the two horizontal force-bearing shafts, and under normal conditions, the temperature detector (4) is fixedly connected to the Z-shaped slide plate (104).

5. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 4, characterized in that: Two clamping plates (406) are symmetrically fixed to the rear side of the housing of the temperature detector (4), and the square mounting block (105) is plugged into and matched with the two clamping plates (406).

6. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 5, characterized in that: The rear side of the housing of the temperature detector (4) is located above the card plate (406), and a positioning slide bar (404) is installed by a spring push-pushing sliding mechanism. The positioning slide bar (404) is in an L-structure, and an L-shaped plug rod (405) is welded downward at the bent position of the head end. The bottom horizontal portion of the L-shaped plug rod (405) passes through the card plate (406) and is plugged into the square mounting block (105), so as to position the square mounting block (105) and the card plate (406).

7. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 6, characterized in that: A passive slide bar (402) with an L-shaped structure is installed at the top end of the front side of the housing of the temperature detector (4) through a spring push-pull sliding mechanism, and a wire threading groove (403) is provided through the longitudinal support portion of the passive slide bar (402).

8. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 7, characterized in that: The signal line and the power line on the temperature detector (4) are threaded and matched with the threading groove (403), and the head end of the longitudinal support part of the passive slide bar (402) is inserted into the interval space between the bent part of the positioning slide bar (404) and the outer shell of the temperature detector (4).

9. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 8, characterized in that: When the passive slide bar (402) is pulled by the signal line and the power line to slide away from the temperature detector (4), it is used to push and drive the positioning slide bar (404) and the L-shaped plug rod (405) to be pulled out and release the temperature detector (4).

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