A device for detecting abnormal temperature of a motor slip ring chamber

Abstract

The present invention provides a device for detecting abnormal temperature in a motor slip ring chamber, which relates to the field of temperature detection technology and includes: 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 drive 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 each of the two drive shafts, and the head ends of the two connecting rods are rotatably connected to the temperature detector; when the protective cover is connected and installed to the motor housing, the rear side protrusions 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 plug in. 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, and the operation and use are simple.

Description

Technical Field

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

[0002] The slip rings of a slip ring motor consist of a conductive ring, tail brushes, brush holders, conductive rods, collector rings, and slip ring covers. These components are housed in a slip ring chamber, which is then connected to the rotor via a flange. Slip ring motors can sometimes overheat during extended operation, potentially burning out the slip rings and carbon brushes. Therefore, it's essential to monitor the temperature inside the slip ring chamber for abnormalities. This requires a temperature detection device.

[0003] Existing temperature detection devices are mostly fixed on the side wall of the slip ring cover or directly built into the chamber inside the slip ring cover by threaded installation. The body or the probe component thereon is permanently protruded from the interior of the slip ring chamber by the threaded static limit. 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 assembly and disassembly of the slip ring cover, the temperature detection device and its probe need to be removed in advance. However, when tightening and disassembling the threaded temperature detection device, multiple turns of tightening are required. In addition, when the locking force is large, a wrench or other force-applying tool is required, which is cumbersome and inconvenient to operate.

[0004] 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

[0005] In view of this, the present invention provides a device for detecting abnormal temperature of a motor slip ring chamber to solve the problem that although some temperature detection devices adopt movable sliding installation to flexibly avoid collision of parts during the disassembly and assembly of the slip ring cover, their movable position movement requires additional manual force to drive, and the operation is still relatively cumbersome and inconvenient.

[0006] The technical solution proposed in the present invention is: a device for detecting abnormal temperature of a motor slip ring chamber, specifically comprising a protective cover, which is fixedly installed at the front end of the motor housing and forms a chamber for containing the motor slip ring between the protective cover and the motor housing;

[0007] A sponge block with a central opening is embedded in 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 mounted on the hexagonal vertical support shaft; two drive shafts are symmetrically slidably mounted at the top position of the side wall of the protective cover through spring pushing, and a connecting rod is rotatably mounted on the middle part of each of the two drive shafts, and the head ends of the two connecting rods are rotatably connected to the temperature detector;

[0008] A metal probe arranged with a vertical support 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 to 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.

[0009] Further,

[0010] An arc-shaped connecting plate is welded between the rear end portions of the two drive shafts, and the two drive shafts are in contact with the motor housing via the arc-shaped connecting plate.

[0011] Further,

[0012] A mounting ring is welded on the rear end opening of the protective cover, and the two drive shafts slide through the mounting ring. An arc-shaped mounting groove is provided on the mounting ring between the two drive shafts. When the two drive shafts are driven to slide forward by reverse thrust, they are plugged into the arc-shaped mounting groove.

[0013] Further,

[0014] A Z-shaped slide 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, and two horizontal force-bearing axes are symmetrically welded on the horizontal part of the bottom side of the Z-shaped slide. The head ends of the two connecting rods are rotatably connected to the two horizontal force-bearing axes. Under normal circumstances, the temperature detector is fixedly connected to the Z-shaped slide.

[0015] Further,

[0016] Two clamping plates are symmetrically fixed on the rear side of the temperature detector housing, and the square mounting blocks are plugged into and matched with the two clamping plates.

[0017] Further,

[0018] The rear side of the shell of the temperature detector is located above the card plate, and a positioning slide rod is installed by spring pushing and sliding. The positioning slide rod is L-structured, 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 for positioning the square mounting block and the card plate.

[0019] Further,

[0020] 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.

[0021] Further,

[0022] The signal line and the power line 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 temperature detector shell.

[0023] Further,

[0024] 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.

[0025] The present invention provides a device for detecting abnormal temperature in a motor slip ring chamber, which has the following beneficial effects:

[0026] 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 existing technology in which the temperature detector is set to a threaded installation form, the tedious action of tightening and loosening with multiple turns can be avoided, and the trouble of requiring an external force tool to perform normal tightening can also be eliminated. The operation of avoiding the empty space of the temperature detector and the metal probe is simple and convenient.

[0027] 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 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.

[0028] 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 and freely slide up and down and move relative to the sponge block to implement wiping and cleaning, avoiding the temperature detector being fixed on the Z-shaped slide and unable to slide and clean at any time. It helps to ensure the automatic insertion and withdrawal function of the temperature detector while being compatible with the free wiping and cleaning function of the metal probe, and the use effect is better.

[0029] In addition, when the temperature detector is driven to automatically move up and down, when the signal line and the power line are entangled with the surrounding parts and are restricted, 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 bar, remove the traction force of the Z-shaped slide bar on the signal line and the power line, and prevent the Z-shaped slide bar from continuously sliding and breaking the signal line and the power line, thereby providing anti-tear protection for the signal line and the power line.

[0030] 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 power line to automatically trip and decouple the Z-shaped slide, thereby implementing anti-tearing protection for the signal line and power line. This makes the tripping and anti-tearing protection function of the temperature detector automatically triggered, without the need for manual intervention and supervision, and is easy to operate and use.

[0031] In addition, when the signal line and 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 power line. This makes the tripping anti-tear function have excellent timeliness, and can timely suppress the tearing damage to the signal line and power line, and the anti-tear protection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0033] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0034] In the attached figure:

[0035] Figure 1 Shows a schematic diagram of the overall front structure of the present invention;

[0036] Figure 2 Shows a schematic diagram of the overall rear structure of the present invention;

[0037] Figure 3 A schematic diagram of a disassembled state of the drive shaft of the present invention is shown;

[0038] Figure 4 Shows a schematic structural diagram of the temperature detector of the present invention;

[0039] Figure 5 Shows a schematic diagram of the rear side structure of the temperature detector of the present invention;

[0040] Figure 6 A schematic diagram of a temperature detector of the present invention in a disassembled state is shown;

[0041] Figure 7 Shows a schematic diagram of the card board structure of the present invention;

[0042] Figure 8 A schematic diagram showing the disassembly and assembly state of the positioning slide bar of the present invention is shown;

[0043] Figure 9 Shows a schematic diagram of the bottom side structure of the temperature detector of the present invention;

[0044] Reference Signs List

[0045] 1. Protective cover; 101. Hexagonal vertical support shaft; 102. Wire groove; 103. Arc-shaped mounting groove; 104. Z-shaped slide; 105. Square mounting block; 106. Sponge block;

[0046] 2. Filter;

[0047] 3. Drive shaft; 301. Arc-shaped connecting plate; 302. Connecting rod;

[0048] 4. Temperature detector; 401. Metal probe; 402. Passive slide bar; 403. Wire threading groove; 404. Positioning slide bar; 405. L-shaped plug rod; 406. Card plate. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions 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 only some embodiments of the present invention, not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] An embodiment of the present invention is provided, please refer to Figures 1 to 9 :

[0051] 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 forms a chamber for containing the motor slip ring between the protective cover 1 and the motor housing. A wire groove 102 is formed on the side wall of the protective cover 1;

[0052] Among them, a sponge block 106 with a central opening is embedded in 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. The head ends of the two connecting rods 302 are rotatably connected to the temperature detector 4. When the protective cover 1 is inserted, removed, 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 adopts a movable sliding installation. It only needs to lift and slide it to pull the metal probe 401 out of the empty space inside the protective cover 1. Compared with the existing technology in which the temperature detector 4 is set as a threaded installation, it can avoid the tedious action of tightening and tightening multiple times, and it can also save the trouble of using an external force tool to implement normal tightening. The operation of avoiding the empty space of the temperature detector 4 and the metal probe 401 is simple and convenient;

[0053] 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 fits through the sponge block 106 and is inserted into the inside of the protective cover 1. Under normal circumstances, 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 clean the dust on the metal probe 401 through friction. The two connecting rods 302, the Z-shaped slide plate 104 and the two drive shafts 3 are connected together to form two crank slider mechanisms. Through these two mechanisms, the two drive shafts 3 can slide back and forth to push and drive the Z-shaped slide plate 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 protrusions of the two drive shafts 3 are connected to the motor housing. The motor housing comes into contact with the motor housing and is driven to slide forward by the reverse thrust, 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 pushing holding force from the motor housing and are pushed back to slide backward by the two springs thereon, 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 pushing driving force generated when the protective cover 1 and the motor housing are disassembled and assembled. This saves the trouble of having to manually exert force to insert and withdraw the temperature detector 4 and the metal probe 401 each time the protective cover 1 is disassembled and assembled, and is easy to operate and use.

[0054] A detachable filter screen 2 is installed on the front opening of the protective cover 1, and the protective cover 1 and the filter screen 2 are both 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 in the circular mounting hole and fixed in the circular mounting hole by Velcro.

[0055] Preferably,

[0056] 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 contact with the motor housing via the arc-shaped connecting plate 301 .

[0057] Preferably,

[0058] A mounting ring is welded on the rear end opening of the protective cover 1, and the two drive shafts 3 slide through 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 pushed back and driven to slide forward, they are plugged into the arc-shaped mounting groove 103.

[0059] Preferably,

[0060] A Z-shaped slide 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 104, and two horizontal force-bearing axes are symmetrically welded on the bottom horizontal part of the Z-shaped slide 104. The head ends of the two connecting rods 302 are rotatably connected to the two horizontal force-bearing axes. Under normal circumstances, the temperature detector 4 is fixedly connected to the Z-shaped slide 104.

[0061] Preferably,

[0062] 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 .

[0063] Preferably,

[0064] 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 spring pushing and sliding. The positioning slide bar 404 is L-structured, and an L-shaped plug rod 405 is welded downward at the bent position of the head end, and the horizontal part of the bottom side of the L-shaped plug rod 405 passes through the card plate 406 and is plugged into the square mounting block 105 for positioning the square mounting block 105 and the card plate 406. The temperature detector 4 and the Z-shaped slide plate 104 are detachable and can be driven to slide the positioning slide bar 404 and the L-shaped plug rod 405 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 and move relative to the sponge block 106 to wipe and clean, avoiding 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 while being compatible with the free wiping and cleaning function of the metal probe 401, and the use effect is better.

[0065] Preferably,

[0066] A passive slide bar 402 with an L-shaped structure is installed at the top front end of the housing of the temperature detector 4 through a spring push. A wire threading groove 403 is provided through the longitudinal support portion of the passive slide bar 402 .

[0067] Preferably,

[0068] The signal line and the power line on the temperature detector 4 are threaded and matched with the wire threading groove 403. Through the wire 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.

[0069] Preferably,

[0070] When the temperature detector 4 is driven to automatically move up and down, when 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, disconnecting the power connection between the temperature detector 4 and the Z-shaped slide plate 104, removing the pulling force of the Z-shaped slide plate 104 on the signal line and the power line, and preventing 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;

[0071] 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 automatically trip and decouple from the Z-shaped slide plate 104, thereby implementing anti-tearing protection for the signal line and the power line. This enables the tripping and anti-tearing protection function of the temperature detector 4 to be automatically triggered without manual participation and supervision, and is easy to operate and use.

[0072] 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.

[0073] Working principle: When the protective cover 1 is inserted, removed, or assembled, the metal probe 401 needs to slide upwards to be pulled out of the protective cover 1 to avoid damage from collision. The temperature detector 4 is installed with a movable slide. The metal probe 401 can be pulled out of the protective cover 1 by simply lifting and sliding it upwards.

[0074] 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 push and drive the Z-shaped slide plate 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 in contact with the motor housing and are pushed back to slide forward, controlling the temperature detector 4 to automatically slide down and reset the metal probe 401 to be inserted into the protective cover 1. When the protective cover 1 is disassembled from the motor housing, the two driving shafts 3 lose the forward pushing holding force from the motor housing and will be pushed back to slide backward by the two springs thereon, and control the temperature detector 4 and the metal probe 401 to automatically slide upward to separate from the protective cover 1.

[0075] 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 be pulled out 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 perform wiping and cleaning without being interfered with by the Z-shaped slide plate 104.

[0076] 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 restricted, 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, disconnecting the power connection between the temperature detector 4 and the Z-shaped slide 104, and removing the traction force of the Z-shaped slide 104 on the signal line and the power line, so as to prevent the Z-shaped slide 104 from continuously sliding and tearing the signal line and the power line and damaging them.

[0077] In this article, there are several points to note:

[0078] 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0079] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0080] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection 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 driving 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 installed 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; 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 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 axes, and under normal conditions, the temperature detector (4) is fixedly connected to the Z-shaped slide plate (104).

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 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), and the two drive shafts (3) are slidably fitted with the mounting ring. An arc-shaped mounting groove (103) is provided on the mounting ring between the two drive shafts (3). When the two drive shafts (3) are driven by reverse thrust to slide forward, they are plugged into the arc-shaped mounting groove (103).

4. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 1, wherein: 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).

5. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 4, 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 rod (404) is installed by a spring push-pushing sliding. The positioning slide rod (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 part of the L-shaped plug rod (405) passes through the card plate (406) and is plugged into the square mounting block (105) for positioning the square mounting block (105) and the card plate (406).

6. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 5, 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 spring pushing and sliding, and a wire threading groove (403) is provided through the longitudinal support portion of the passive slide bar (402).

7. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 6, 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 bending part of the positioning slide bar (404) and the housing of the temperature detector (4).

8. The device for detecting abnormal temperature of a motor slip ring chamber according to claim 7, 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 bar (405) to be pulled out and release the temperature detector (4).

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