Shell structure of voltage detection and indication device

Abstract

The invention discloses a shell structure of a voltage detection and indication device, and particularly relates to the technical field of voltage detection and indication devices.The equipment comprises a shell, a front panel, a detection device, an indication circuit board and a rear panel, and the surface of the detection device is provided with a heat dissipation mechanism used for improving heat dissipation of the voltage detection and indication device; one end of the shell is provided with a clamping mechanism for rapidly installing the front panel, through a heat dissipation mechanism, when the detection device and the indication circuit board are used, a large amount of heat is generated in the detection device and the indication circuit board, a driving motor in a supporting block is started, a fan can rotate, cooling can be conducted through a cooling plate and a cooling pipe, and the detection device and the indication circuit board are convenient to use. And heat in the detection device and the indication circuit board is collected into the fixing frame through the ventilation plate and is discharged through the heat dissipation holes, so that the situation that the use of the detection device and the indication circuit board is influenced due to the damage of electric appliance parts caused by over-high heat in the detection device and the indication circuit board is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of voltage detection and indication device, more particularly, the present application relates to the housing structure of voltage detection and indication device. BACKGROUND

[0002] In the power system, the main loop voltage state of high-voltage electrical equipment (such as switch cabinet, bus, transformer, circuit breaker, etc.) is the key parameter for the safe and stable operation of the power grid. The operating personnel need to obtain the live state, voltage amplitude and phase information of the equipment in real time to guide the correct operation, maintenance and fault handling. However, due to the strong insulation requirement and safety risk of high-voltage equipment, direct measurement of the main loop high-voltage signal has significant technical challenges and safety hazards. Therefore, a dedicated voltage detection and indication device is usually used to convert the high-voltage signal into safe and observable information for the operating personnel to monitor.

[0003] However, the existing voltage detection and indication device uses bolt fastening or ultrasonic welding method to fix the panel with the housing. When the internal indication circuit board needs to be repaired or replaced, the operator must disassemble a large number of bolts or forcibly pry open the welded panel, which is inconvenient for maintenance. This process is not only tedious and time-consuming, but also may cause physical damage to the panel or housing. When the device is in use, the internal space has limited heat dissipation effect, making it difficult to effectively discharge the heat generated during operation. Long-term high-temperature operation can accelerate the aging of internal electronic components, reduce the reliability of the device, and even cause damage to electrical components, posing a potential safety hazard.

[0004] Therefore, the housing structure of the voltage detection and indication device is proposed to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a housing structure of voltage detection and indication device.

[0006] The housing structure of voltage detection and indication device provided by the present application adopts the following technical solution: The housing structure of voltage detection and indication device includes an outer shell, a front panel, a detection device, an indication circuit board and a rear panel. The surface of the outer shell is slidingly connected with the front panel. The inside of the outer shell is slidingly connected with the detection device. The front end of the outer shell is slidingly connected with the indication circuit board. The inside of the outer shell is provided with a connecting structure for fixing the detection device. One end of the outer shell is provided with a mounting mechanism for fixing the rear panel. The surface of the detection device is provided with a heat dissipation mechanism for improving the heat dissipation of the voltage detection and indication device. One end of the outer shell is provided with a fixing mechanism for fixing the indication circuit board. One end of the outer shell is provided with a clamping mechanism for quickly mounting the front panel.

[0007] Preferably, the connecting structure comprises connecting blocks, first screw holes and first screws, the inside of the shell is fixedly connected with two groups of connecting blocks, the surface of the detection device is provided with two groups of first screw holes, the inside of the first screw hole is threadedly connected with a first screw, and one end of the first screw is matched with the connecting block.

[0008] By adopting the technical scheme, the detection device is inserted into the shell, the first screw is screwed, the first screw is threadedly connected with the connecting block through the first screw hole, and the detection device can be installed and fixed in the shell.

[0009] Preferably, the mounting mechanism comprises a rear panel, second screw holes and second screws, one end of the shell is slidably connected with the rear panel, the surface of the rear panel is provided with a plurality of second screw holes, the inner wall of the second screw hole is threadedly connected with a second screw, and one end of the second screw is threadedly connected with the shell.

[0010] By adopting the technical scheme, the detection device is inserted into the shell, the first screw is screwed, the first screw is threadedly connected with the connecting block through the first screw hole, and the detection device can be installed and fixed in the shell.

[0011] Preferably, the heat dissipation mechanism comprises a fixing frame, air permeable plates, cooling plates, cooling pipes, supporting blocks, fans and heat dissipation holes, the surface of the detection device is fixedly connected with the fixing frame, the surface of the fixing frame is provided with a plurality of air permeable plates, the inside of the fixing frame is provided with a plurality of cooling plates, the surface of the cooling plate is provided with a cooling pipe, the inside of the fixing frame is provided with a supporting block, the inside of the supporting block is connected with a fan through a driving motor, and the top of the shell is provided with a plurality of heat dissipation holes.

[0012] By adopting the technical scheme, when the detection device and the indicating circuit board are in use, a large amount of heat is generated inside, the driving motor in the supporting block is started, the fan can rotate, the cooling plate and the cooling pipe can be cooled, then the heat in the detection device and the indicating circuit board is collected in the fixing frame through the air permeable plate, and is discharged through the heat dissipation hole, so that the damage of the electric components caused by the excessive heat in the detection device and the indicating circuit board is avoided, and the use of the detection device and the indicating circuit board is affected.

[0013] Preferably, the fixing mechanism comprises fixing blocks, third screw holes, third screws, clamping blocks, clamping pin grooves, clamping grooves, spring grooves, first springs and clamping pins, the inside of the shell is fixedly connected with a plurality of fixing blocks at one end, the surface of the indicating circuit board is provided with a plurality of third screw holes, the inner wall of the third screw hole is threadedly connected with a third screw, one end of the third screw is matched with the fixing block, and the inside of the shell is fixedly connected with a plurality of clamping blocks at one end.

[0014] By adopting the technical scheme, the indicating circuit board is inserted into the shell, the third screw is screwed, the third screw is screwed with the fixing block through the third screw hole, and the indicating circuit board can be fixed in the shell.

[0015] Preferably, the surface of the plurality of sets of clamping blocks is provided with a clamping pin slot, the surface of the indicating circuit board is provided with a plurality of clamping slots, the inner wall of the clamping slot is provided with a spring slot, the inner wall of the spring slot is provided with a first spring, one end of the first spring is fixedly connected with a clamping pin, and the other end is fixedly connected with a spring slot.

[0016] Preferably, the spring slot is provided with a cylindrical accommodating cavity matched with the outer circumferential surface of the first spring, and a radial matching gap is formed between the inner wall of the accommodating cavity and the outer wall of the first spring, and the size of the radial matching gap is 0.08-0.25mm.

[0017] Preferably, the clamping mechanism comprises a sliding groove, a sliding block, a fixing sleeve, a connecting plate, a second spring, a first inclined block, a fixed rod, a second inclined block, a button, a limiting block and a fixing groove, the surface of the shell is provided with two sets of sliding grooves, the inner wall of the two sets of sliding grooves is slidably connected with a sliding block, the surface of the sliding block is fixedly connected with a fixing sleeve, the inside of the fixing sleeve is fixedly connected with a connecting plate, the surface of the connecting plate is fixedly connected with two sets of second springs, one end of the two sets of second springs is fixedly connected with a first inclined block, the top of the two sets of first inclined blocks is fixedly connected with a fixed rod, the inside of the fixing sleeve is provided with two sets of second inclined blocks, the surface of the two sets of second inclined blocks is fixedly connected with a button, and the inside of the fixing sleeve is slidably connected with a button.

[0018] Preferably, the inside of the front panel is fixedly connected with a plurality of limiting blocks, the surface of the limiting block is provided with a fixing groove, and one end of the fixed rod is matched with the fixing groove.

[0019] Preferably, the inside of the front panel is provided with a plurality of clamping blocks, the surface of the shell is provided with a plurality of clamping grooves, the clamping blocks are matched with the clamping grooves, and the surface of the shell is provided with a plurality of elastic sheets.

[0020] The technical effects and advantages of the present application are as follows: Compared with the prior art, the shell structure of the voltage detection and indication device, through the clamping mechanism, when the indicating circuit board needs to be replaced or repaired, the button is pressed, the second inclined block is driven to move downward, the first inclined block and the fixed rod are driven to retract into the fixing sleeve when the second inclined block moves, so that they are removed from the fixing groove, so that the fixing sleeve can be retracted into the sliding groove, and then the front panel can be removed, the third screw is unscrewed, so that the indicating circuit board can be replaced or repaired, and the front panel and the shell are prevented from being damaged.

[0021] Compared with the prior art, the shell structure of the voltage detection and indication device, when the detection device and the indication circuit board generate a large amount of heat inside when in use, the driving motor inside the supporting block is started, the fan can rotate, the cooling plate and the cooling pipe can cool down, and then the heat inside the detection device and the indication circuit board is collected into the fixing frame through the air-permeable plate, and is discharged through the heat dissipation holes, so that the damage of the electric components caused by the excessive heat inside the detection device and the indication circuit board is avoided, and the use of the detection device and the indication circuit board is affected. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the cooperation structure of the shell and the front panel of the present application; Figure 3 It is a schematic diagram of the connection structure of the present application; Figure 4 It is a schematic diagram of the mounting mechanism of the present application; Figure 5 It is a schematic diagram of the heat dissipation mechanism of the present application; Figure 6 It is a schematic diagram of the fixing mechanism of the present application; Figure 7 It is a schematic diagram of the cooperation structure of the clamping block and the clamping slot of the present application; Figure 8 It is a schematic diagram of the cooperation structure of the shell and the clamping slot of the present application; Figure 9 It is a schematic diagram of the cooperation structure of the clamping block and the clamping slot of the present application; Figure 10 It is a schematic diagram of the clamping mechanism of the present application; Figure 11 It is a schematic diagram of the cooperation structure of the fixing sleeve and the button of the present application; Figure 12 It is a schematic diagram of the cooperation structure of the sliding groove and the sliding block of the present application; Figure 13 It is a schematic diagram of the cooperation structure of the first inclined block and the second inclined block of the present application; Figure 14 It is a schematic diagram of the Figure 7 It is an enlarged schematic diagram of A in the present application.

[0023] The attached figures are labeled as follows: 1. Outer casing; 2. Front panel; 3. Detection device; 4. Indicator circuit board; 5. Connection structure; 501. Connecting block; 502. First screw hole; 503. First screw; 6. Mounting mechanism; 601. Rear panel; 602. Second screw hole; 603. Second screw; 7. Heat dissipation mechanism; 701. Fixing bracket; 702. Ventilation plate; 703. Cooling plate; 704. Cooling pipe; 705. Support block; 706. Fan; 707. Heat dissipation hole; 8. Fixing mechanism; 801. Fixing block; 8 02. Third screw hole; 803. Third screw; 804. Locking block; 805. Locking pin groove; 806. Locking groove; 807. Spring groove; 808. First spring; 809. Locking pin; 9. Locking mechanism; 901. Slide groove; 902. Slider; 903. Fixing sleeve; 904. Connecting plate; 905. Second spring; 906. First inclined block; 907. Fixing rod; 908. Second inclined block; 909. Button; 910. Limiting block; 911. Fixing groove; 10. Locking block; 11. Locking groove; 12. Spring piece. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Example 1 like Figures 1 to 14 The housing structure of the voltage detection and indication device shown includes a housing 1, a front panel 2, a detection device 3, an indicator circuit board 4, and a rear panel 601. The front panel 2 is slidably connected to the surface of the housing 1, and the detection device 3 is slidably connected inside the housing 1. It is used to detect the voltage amplitude, frequency, phase, and other parameters of the main circuit of high-voltage equipment (such as switchgear, busbars, transformers, etc.). The indicator circuit board 4 is slidably connected to the front end of the housing 1. The LCD screen on the indicator circuit board 4 can reflect the presence of voltage and abnormal conditions such as overvoltage / undervoltage. The housing 1 has a connection structure 5 for fixing the detection device 3. The housing 1 has a mounting mechanism 6 for fixing the rear panel 601 at one end. The detection device 3 has a heat dissipation mechanism 7 for improving the heat dissipation of the voltage detection and indication device, which can improve the overall heat dissipation effect of the device. The housing 1 has a fixing mechanism 8 for fixing the indicator circuit board 4 at one end. The housing 1 also has a snap-fit ​​mechanism 9 for quick installation of the front panel 2, which can make it easier to remove or install the front panel 2.

[0026] As a preferred implementation, the connecting structure 5 comprises a connecting block 501, a first screw hole 502 and a first screw 503, two groups of connecting blocks 501 are fixedly connected to the inside of the shell 1, two groups of first screw holes 502 are arranged on the surface of the detection device 3, the first screw holes 502 are internally screwed with the first screws 503, and one end of the first screw 503 is matched with the connecting block 501. Insert the detection device 3 into the shell 1, and screw the first screw 503. The first screw 503 is screwed with the connecting block 501 through the first screw hole 502, so that the detection device 3 can be installed and fixed in the shell 1.

[0027] As a preferred implementation, the mounting mechanism 6 comprises a back panel 601, a second screw hole 602 and a second screw 603, one end of the shell 1 is slidably connected with the back panel 601, a plurality of second screw holes 602 are arranged on the surface of the back panel 601, the inner wall of the second screw hole 602 is screwed with the second screw 603, and one end of the second screw 603 is screwed with the shell 1. Insert the back panel 601 into the shell 1, connect the detection device 3 and the back panel 601 together, screw the second screw 603, and screw the second screw 603 with the shell 1 through the second screw hole 602, so that the back panel 601 can be installed and fixed in the shell 1.

[0028] As a preferred implementation, the heat dissipation mechanism 7 comprises a fixing frame 701, a breathable plate 702, a cooling plate 703, a cooling pipe 704, a supporting block 705, a fan 706 and a heat dissipation hole 707, the surface of the detection device 3 is fixedly connected with the fixing frame 701, the surface of the fixing frame 701 is provided with a plurality of breathable plates 702, the inside of the fixing frame 701 is provided with a plurality of cooling plates 703, the surface of the cooling plate 703 is provided with a cooling pipe 704, the inside of the fixing frame 701 is provided with a supporting block 705, the inside of the supporting block 705 is connected with the fan 706 through a driving motor, and a plurality of heat dissipation holes 707 are arranged on the top of the shell 1. When the detection device 3 and the indicating circuit board 4 are in use, a large amount of heat will be generated inside, the driving motor inside the supporting block 705 is started, the fan 706 can rotate, the cooling plate 703 and the cooling pipe 704 can be cooled, and then the heat inside the detection device 3 and the indicating circuit board 4 is collected into the fixing frame 701 through the breathable plate 702, and is discharged through the heat dissipation hole 707, so as to avoid that the high heat inside the detection device 3 and the indicating circuit board 4 causes damage to the electrical components, and further affects the use of the detection device 3 and the indicating circuit board 4.

[0029] As a preferred implementation, the fixing mechanism 8 comprises fixing blocks 801, third screw holes 802, third screws 803, clamping blocks 804, clamping pin grooves 805, clamping grooves 806, spring grooves 807, first springs 808 and clamping pins 809, the inner end of the shell 1 is fixedly connected with a plurality of groups of fixing blocks 801, the surface of the indicating circuit board 4 is provided with a plurality of groups of third screw holes 802, the inner wall of the third screw hole 802 is threadedly connected with the third screw 803, one end of the third screw 803 is matched with the fixing block 801, the indicating circuit board 4 is inserted in the shell 1, the third screw 803 is screwed, the third screw 803 is threadedly connected with the fixing block 801 through the third screw hole 802, so that the indicating circuit board 4 can be fixedly installed in the shell 1, and the inner end of the shell 1 is fixedly connected with a plurality of groups of clamping blocks 804.

[0030] As a preferred implementation, the surface of the plurality of groups of clamping blocks 804 is provided with clamping pin grooves 805, the surface of the indicating circuit board 4 is provided with a plurality of groups of clamping grooves 806, the inner wall of the clamping groove 806 is provided with a spring groove 807, the inner wall of the spring groove 807 is provided with a first spring 808, one end of the first spring 808 is fixedly connected with a clamping pin 809, the other end is fixedly connected with the spring groove 807, and the outer wall of the clamping pin 809 is matched with the clamping pin groove 805, when the indicating circuit board 4 is inserted in the shell 1, the clamping block 804 is inserted in the clamping groove 806 at this time, the clamping block 804 extrudes the first spring 808 and the clamping pin 809, and after the position of the indicating circuit board 4 is appropriate, the first spring 808 resets to push the clamping pin 809 to be inserted in the clamping pin groove 805, so that the indicating circuit board 4 can be clamped in the shell 1, so as to be subsequently installed and fixed by the third screw 803.

[0031] As a preferred implementation, the spring groove 807 is provided with a cylindrical accommodating cavity matched with the outer circumferential surface of the first spring 808, a radial matching gap is formed between the inner wall of the accommodating cavity and the outer wall of the first spring 808, the size range of the radial matching gap is 0.08-0.25 mm, and the spring groove 807 limits the first spring 808 when the first spring 808 stretches and contracts, so as to avoid shaking of the first spring 808.

[0032] As a preferred implementation, the clamping mechanism 9 comprises a sliding groove 901, a sliding block 902, a fixed sleeve 903, a connecting plate 904, a second spring 905, a first inclined block 906, a fixed rod 907, a second inclined block 908, a button 909, a limiting block 910 and a fixed groove 911, the surface of the shell 1 is provided with two groups of sliding grooves 901, the inner walls of the two groups of sliding grooves 901 are slidably connected with the sliding blocks 902, the surface of the sliding block 902 is fixedly connected with the fixed sleeve 903, the inside of the fixed sleeve 903 is fixedly connected with the connecting plate 904, the surface of the connecting plate 904 is fixedly connected with two groups of second springs 905, one end of the two groups of second springs 905 is fixedly connected with the first inclined block 906, the top of the two groups of first inclined blocks 906 is fixedly connected with the fixed rod 907, the inside of the fixed sleeve 903 is provided with two groups of second inclined blocks 908, the surface of the two groups of second inclined blocks 908 is fixedly connected with the button 909, the inside of the fixed sleeve 903 is slidably connected with the button 909, when the button 909 is pressed, the button 909 drives the second inclined block 908 to move downward, the second inclined block 908 moves to drive the first inclined block 906 and the fixed rod 907 to retract into the fixed sleeve 903, and the fixed rod 907 will press the second spring 905, so that the sliding block 902 and the fixed sleeve 903 move in the sliding groove 901.

[0033] As a preferred implementation, the inside of the front panel 2 is fixedly connected with a plurality of limiting blocks 910, the surface of the limiting block 910 is provided with a fixed groove 911, one end of the fixed rod 907 is matched with the fixed groove 911, the front panel 2 is inserted into the shell 1, the fixed sleeve 903 is pushed to be inserted between the two groups of limiting blocks 910, when the position of the fixed sleeve 903 is appropriate, the second spring 905 resets to push the fixed rod 907 to be inserted into the fixed groove 911, so that the front panel 2 can be fixed on the shell 1.

[0034] As a preferred implementation, the inside of the front panel 2 is provided with a plurality of clamping blocks 10, the surface of the shell 1 is provided with a plurality of clamping grooves 11, the clamping block 10 is matched with the clamping groove 11, when the front panel 2 is connected with the shell 1, the clamping block 10 can be inserted into the clamping groove 11, so that the front panel 2 can be clamped on the shell 1, the surface of the shell 1 is provided with a plurality of elastic sheets 12, by pressing the elastic sheet 12, one end of the elastic sheet 12 can be inserted into the gap between the shell 1 and the front panel 2, the elastic sheet 12 is released to elastically deform, so that the elastic sheet 12 is clamped on the front panel 2.

[0035] The working process of the present application is as follows: when it is necessary to install the detection device 3 and the indicating circuit board 4, the detection device 3 is inserted into the shell 1, the first screw 503 is screwed, the first screw 503 is threaded through the first screw hole 502 and connected with the connecting block 501, so that the detection device 3 can be installed and fixed in the shell 1, then the back panel 601 is inserted into the shell 1, so that the detection device 3 is connected with the back panel 601, the second screw 603 is screwed, the second screw 603 is threaded through the second screw hole 602 and connected with the shell 1, so that the back panel 601 can be installed and fixed in the shell 1, when the indicating circuit board 4 is inserted into the shell 1, the clamping block 804 is inserted into the clamping groove 806 at this time, the clamping block 804 extrudes the first spring 808 and the clamping pin 809, when the position of the indicating circuit board 4 is appropriate, the first spring 808 resets to push the clamping pin 809 into the clamping pin slot 805, so that the indicating circuit board 4 can be clamped in the shell 1, so as to be subsequently installed and fixed by the third screw 803, then the front panel 2 is inserted into the shell 1, the clamping block 10 can be inserted into the clamping groove 11, so that the front panel 2 can be clamped on the shell 1, the fixing sleeve 903 is pushed to be inserted between the two groups of limiting blocks 910, when the position of the fixing sleeve 903 is appropriate, the second spring 905 resets to push the fixing rod 907 into the fixing slot 911, so that the front panel 2 can be fixed on the shell 1, thereby completing the installation of the detection device 3 and the indicating circuit board 4, through the detection device 3, the voltage amplitude, frequency, phase and other parameters of the main circuit of the high-voltage equipment (such as switch cabinet, bus, transformer, etc.) can be detected, and through the liquid crystal screen on the indicating circuit board 4, whether the voltage exists, whether there is overvoltage / undervoltage and other abnormal states can be reflected, when the detection device 3 and the indicating circuit board 4 are in use, a large amount of heat will be generated inside, the drive motor inside the supporting block 705 is started to make the fan 706 rotate, the cooling plate 703 and the cooling pipe 704 can be cooled, thereby the heat inside the detection device 3 and the indicating circuit board 4 is collected into the fixing frame 701 through the breathable plate 702, and is discharged through the heat dissipation holes 707, so as to avoid that the high temperature inside the detection device 3 and the indicating circuit board 4 causes damage to the electrical components, thereby affecting the use of the detection device 3 and the indicating circuit board 4, when it is necessary to replace or repair the indicating circuit board 4, the button 909 is pressed, the second inclined block 908 is driven to move downward, the first inclined block 906 and the fixing rod 907 are collected into the fixing sleeve 903 when the second inclined block 908 moves, so that they are moved out of the fixing slot 911, so that the fixing sleeve 903 can be collected into the sliding groove 901, thereby the front panel 2 can be removed, the third screw 803 is unscrewed, so as to replace or repair the indicating circuit board 4, the above is the working principle of the shell structure of the voltage detection and indication device.

Claims

1. A housing structure of a voltage detection and indication device, comprising a shell (1), a front panel (2), a detection device (3), an indication circuit board (4) and a rear panel (601), the surface of the shell (1) is slidably connected with the front panel (2), the inside of the shell (1) is slidably connected with the detection device (3), and the front end of the shell (1) is slidably connected with the indication circuit board (4), characterized in that: The inside of the shell (1) is provided with a connecting structure (5) for fixing the detection device (3), one end of the shell (1) is provided with a mounting mechanism (6) for fixing the back panel (601), the surface of the detection device (3) is provided with a heat dissipation mechanism (7) for improving voltage detection and indicating device heat dissipation, one end of the shell (1) is provided with a fixing mechanism (8) for fixing the indicating circuit board (4), one end of the shell (1) is provided with a clamping mechanism (9) for quickly mounting the front panel (2).

2. The housing structure of the voltage detection and indication apparatus according to claim 1, characterized by: The connecting structure (5) comprises a connecting block (501), a first screw hole (502) and a first screw (503), the inside of the shell (1) is fixedly connected with two connecting blocks (501), the surface of the detection device (3) is provided with two first screw holes (502), and the inside of the first screw hole (502) is threadedly connected with the first screw (503), and one end of the first screw (503) is matched with the connecting block (501).

3. The housing structure of the voltage detection and indication apparatus according to claim 1, characterized by: The mounting mechanism (6) comprises a back panel (601), a second screw hole (602) and a second screw (603), one end of the shell (1) is slidably connected with the back panel (601), the surface of the back panel (601) is provided with a plurality of second screw holes (602), and the inner wall of the second screw hole (602) is threadedly connected with the second screw (603), and one end of the second screw (603) is threadedly connected with the shell (1).

4. The housing structure of the voltage detecting and indicating device according to claim 1, characterized in that: The heat dissipation mechanism (7) comprises a fixing frame (701), a breathable plate (702), a cooling plate (703), a cooling pipe (704), a supporting block (705), a fan (706) and a heat dissipation hole (707), the surface of the detection device (3) is fixedly connected with the fixing frame (701), the surface of the fixing frame (701) is provided with a plurality of breathable plates (702), the inside of the fixing frame (701) is provided with a plurality of cooling plates (703), the surface of the cooling plate (703) is provided with a cooling pipe (704), the inside of the fixing frame (701) is provided with a supporting block (705), the inside of the supporting block (705) is connected with the fan (706) through a driving motor, and the top of the shell (1) is provided with a plurality of heat dissipation holes (707).

5. The housing structure of the voltage detecting and indicating device according to claim 1, characterized in that: The fixing mechanism (8) comprises a fixing block (801), a third screw hole (802), a third screw (803), a clamping block (804), a clamping pin slot (805), a clamping slot (806), a spring slot (807), a first spring (808) and a clamping pin (809), a plurality of fixing blocks (801) are fixedly connected to one end of the inside of the shell (1), a plurality of third screw holes (802) are formed in the surface of the indicating circuit board (4), the inner wall of the third screw hole (802) is threadedly connected with the third screw (803), one end of the third screw (803) is matched with the fixing block (801), and a plurality of clamping blocks (804) are fixedly connected to one end of the inside of the shell (1).

6. The housing structure of the voltage detection and indication apparatus according to claim 5, characterized by: The surface of the plurality of groups of the card blocks (804) is provided with a card pin slot (805), the surface of the indication circuit board (4) is provided with a plurality of groups of card slots (806), the inner wall of the card slot (806) is provided with a spring slot (807) on one side, the inner wall of the spring slot (807) is provided with a first spring (808), one end of the first spring (808) is fixedly connected with a card pin (809), the other end is fixedly connected with a spring slot (807), and the outer wall of the card pin (809) is matched with the card pin slot (805).

7. The housing structure of a voltage detection and indication device according to claim 6, characterized in that: The spring slot (807) is provided with a cylindrical accommodating cavity matched with the outer circumferential surface of the first spring (808), and a radial matching gap is formed between the inner wall of the accommodating cavity and the outer wall of the first spring (808), and the size range of the radial matching gap is 0.08-0.25mm.

8. The housing structure of the voltage detecting and indicating device according to claim 1, characterized by: The clamping mechanism (9) comprises a sliding groove (901), a sliding block (902), a fixed sleeve (903), a connecting plate (904), a second spring (905), a first inclined block (906), a fixed rod (907), a second inclined block (908), a button (909), a limiting block (910) and a fixed groove (911), the surface of the shell (1) is provided with two groups of sliding grooves (901), the inner wall of the two groups of sliding grooves (901) is slidably connected with a sliding block (902), the surface of the sliding block (902) is fixedly connected with a fixed sleeve (903), the inside of the fixed sleeve (903) is fixedly connected with a connecting plate (904), the surface of the connecting plate (904) is fixedly connected with two groups of second springs (905), one end of the two groups of second springs (905) is fixedly connected with a first inclined block (906), the top of the two groups of first inclined blocks (906) is fixedly connected with a fixed rod (907), the inside of the fixed sleeve (903) is provided with two groups of second inclined blocks (908), the surface of the two groups of second inclined blocks (908) is fixedly connected with a button (909), and the inside of the fixed sleeve (903) is slidably connected with a button (909).

9. The housing structure of a voltage detection and indication apparatus according to claim 8, characterized by: The inside of the front panel (2) is fixedly connected with a plurality of groups of limiting blocks (910), the surface of the limiting block (910) is provided with a fixed groove (911), and one end of the fixed rod (907) is matched with the fixed groove (911).

10. The housing structure of the voltage detecting and indicating device according to claim 1, characterized in that: The inside of the front panel (2) is provided with a plurality of groups of clamping blocks (10), the surface of the shell (1) is provided with a plurality of groups of clamping grooves (11), the clamping block (10) is matched with the clamping groove (11), and the surface of the shell (1) is provided with a plurality of groups of elastic sheets (12).

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