Structure for increasing withstand voltage of voltage type sensor

Abstract

The utility model discloses a structure for increasing the withstand voltage of a voltage type sensor, and the structure comprises a hollow upper housing, the lower side of the upper housing is covered with a hollow lower housing, the diagonal positions of the upper housing are provided with two locking rods in an inserted manner, the lower sides of the two locking rods are fixedly connected with a limiting square plate, and a group of diagonal upper stop blocks and lower stop blocks are provided with lower grooves in a clamping manner. The lower check block is provided with a fixing groove hole and communicates with the lower groove, and the fixing groove hole in the side, away from the lower groove, of the limiting square plate rotates to limit movement of the upper shell in the vertical direction of the lower shell. According to the utility model, the problems in the prior art that the mounting shell of the sensor is inconvenient to fix and disassemble and the stability of the sensor placed in the mounting shell is poor are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure-resistant structures of sensors and relates to a pressure-resistant structure of a voltage-increasing type sensor. Background Art

[0002] A sensor is an electronic component that is frequently used in daily life and usually needs to be placed in a housing to protect the sensor. A Chinese patent with authorization number CN215003650U discloses a sensor mounting assembly, comprising: a housing, the housing comprising an upper housing cover and a base that are connected to each other, the upper housing cover being provided with a first through hole that penetrates along the thickness direction; a circuit board, fixedly connected to the housing, the circuit board having an interface portion and a lead-out portion, both of which are used to connect the sensor, the lead-out portion extending from the first through hole; and a power supply module, electrically connected to the circuit board for supplying power to the circuit board; however, this technical solution has the problems of inconvenient fixing and disassembly of the sensor mounting housing and poor stability of the sensor placed in the mounting housing. Utility Model Content

[0003] In view of the above problems, the utility model proposes a structure for increasing the pressure resistance of a voltage-type sensor, which effectively solves the problems in the prior art of inconvenient fixing and disassembly of the sensor installation housing and poor stability of the sensor placed in the installation housing.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A structure for increasing the pressure resistance of a voltage-type sensor comprises a hollow upper shell, a hollow lower shell is covered on the lower side of the upper shell, two locking rods are inserted at diagonal positions of the upper shell and fixedly connected to the lower sides of the limiting square plates, a group of diagonal upper and lower blocks are both clamped with lower grooves, the lower block is provided with a fixed slot hole and is connected to the lower slot, the limiting square plate rotates away from the fixed slot hole on one side of the lower slot to limit the movement of the upper shell in the vertical direction of the lower shell, the upper blocks are fixedly connected at the four corners of the inner wall of the upper shell, the lower blocks are fixedly connected at the four corners of the inner wall of the lower shell, the middle side of the upper shell is fixedly connected to a first fixed body with a thread, three fixing columns are arranged on both sides of the first fixed body, a first step is symmetrically fixedly arranged on one side of the upper shell, a second step is symmetrically fixedly arranged on the other side of the upper shell, and a second fixed body with a groove is symmetrically fixedly arranged in the middle part of the lower shell.

[0006] Preferably, annular grooves are provided at diagonal positions on the upper side of the upper shell, a placement groove is provided in the middle side of the annular groove, a rotating rod is placed in the placement groove, the lower side of the rotating rod is fixedly connected to the locking rod, a tension spring is mounted on the upper side of the locking rod, the tension spring is located in the placement groove and contacts the rotating rod, an upper groove is provided on one side of the placement groove, the upper groove is located directly above the lower groove, and the lower sides of the other group of diagonal upper stop blocks are fixedly connected to limiting columns, and the lower stop blocks on the lower side thereof are provided with positioning holes, and the limiting columns are plugged into the positioning holes.

[0007] Preferably, the first step is in a trapezoidal shape, and the second step is in a rectangular shape.

[0008] Preferably, the diameter of the fixing slot is larger than the diameter of the insertion hole.

[0009] Preferably, the depth of the annular groove is the same as the thickness of the rotating rod.

[0010] Preferably, a convex plate is fixedly connected to the upper side of the lower shell, a groove is opened inside the lower side of the upper shell, and the convex plate is plugged into the groove.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In order to prevent the installation deviation between the heat sink and the shell, the heat sink is clamped in the shell through three fixing columns. The first step and the second step are used in conjunction to separate the secondary board and the heat sink to avoid short circuit due to contact, thereby improving the test withstand voltage value.

[0013] 2. The utility model inserts the locking rod into the fixed slot hole of the lower stopper, adjusts the rotating rod, and moves the limiting square plate of the locking rod away from the position of the lower slot, thereby limiting the vertical position of the upper shell on the lower shell; when the position of the upper shell needs to be opened, adjust the rotating rod, and when the limiting square plate of the locking rod coincides with the position of the lower slot, under the action of the tension spring, the limiting square plate moves upward along the lower slot, and the locking rod is pulled upward out of the position of the slot, thereby releasing the limiting of the upper shell on the lower shell by the locking rod, thereby facilitating the removal of the upper shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the axonometric structure of the utility model.

[0015] Figure 2 It is a partial cross-sectional view of the upper shell of the utility model.

[0016] Figure 3 For the utility model Figure 2 Schematic diagram of the enlarged structure of part I in the middle.

[0017] Figure 4 This is a schematic diagram of the locking rod structure of the utility model.

[0018] Figure 5 It is a schematic diagram of the upper shell structure of the utility model.

[0019] Figure 6 This is a schematic diagram of the fixed column structure of the utility model.

[0020] Figure 7 This is a schematic diagram of the lower shell structure of the utility model

[0021] In the figure: 1. upper shell; 2. lower shell; 3. rotating rod; 4. annular groove; 5. locking rod; 6. upper groove; 7. extension spring; 8. fixed slot; 9. upper block; 10. lower block; 11. lower groove; 12. limiting square plate; 13. first step; 14. fixing column; 15. first fixing body; 16. second step; 17. limiting column; 18. positioning hole; 19. convex plate; 20. groove; 21. main board; 22. second fixing body; 23. secondary board; 24. heat sink. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-7 The utility model provides a technical solution: a voltage-type sensor pressure-resistant structure, comprising a hollow upper shell 1, a hollow lower shell 2 is covered on the lower side of the upper shell 1, two locking rods 5 are inserted at the diagonal position of the upper shell 1, and the lower side is fixedly connected to a limited square plate 12, a group of diagonal upper block blocks 9 and lower block blocks 10 are both opened with lower grooves 11, the lower block block 10 is opened with a fixed slot hole 8 and is connected to the lower slot 11, and the limited square plate 12 is rotated away from the fixed slot hole 8 on one side of the lower slot 11 to limit the upper shell In the vertical movement of the lower shell 2, the upper shell 1 is fixedly connected with upper stoppers 9 at the four corners of the inner wall, the lower shell 2 is fixedly connected with lower stoppers 10 at the four corners of the inner wall, the middle side of the upper shell 1 is fixedly connected with a first fixed body 15 with threads, three fixed columns 14 are arranged on both sides of the first fixed body 15, a first step 13 is symmetrically fixedly arranged on one side of the upper shell 1, a second step 16 is symmetrically fixedly arranged on the other side of the upper shell 1, and a second fixed body 22 with a groove is symmetrically fixedly arranged in the middle of the lower shell 2.

[0024] The voltage type sensor includes a main board 21, a secondary board 23 and a heat sink 24. First, the annular opening in the middle of the heat sink 24 of the voltage type sensor is placed on the top of the first fixed body 15, and the heat sink 24 is fixed to the top of the first fixed body 15 by a locking screw. In order to prevent the heat sink 24 from having an installation deviation with the upper shell 1, the heat sink is positioned and installed in the upper shell 1 by three fixing columns 14, and the secondary board 23 of the voltage type sensor is installed on the lower side of the heat sink 24. The secondary board 23 is in contact with the first step 13 and the second step 16 on all sides and is threadedly connected to the first step 13 and the second step 16 by locking screws. The height of the first step 13 and the second step 16 is greater than the height of the fixing column 14. By using the first step 13, the second step 16 and the fixing column 14 in coordination, the secondary board 23 is spaced apart from the heat sink 24 to avoid the phenomenon of short circuit between the heat sink and the secondary board, thereby improving the test withstand voltage value. The main board 21 of the voltage type sensor is plugged into the second fixed body 22.

[0025] Annular grooves 4 are provided at diagonal positions on the upper side of the upper shell 1, and a placement groove is provided in the middle side of the annular groove 4. A rotating rod 3 is placed in the placement groove. The lower side of the rotating rod 3 is fixedly connected to the locking rod 5, and a tension spring 7 is sleeved on the upper side of the locking rod 5. The tension spring 7 is located in the placement groove and contacts the rotating rod 3. An upper groove 6 is provided on one side of the placement groove, and the upper groove 6 is located directly above the lower groove 11. The lower sides of the other group of diagonal upper stoppers 9 are fixedly connected to limiting columns 17, and the lower stoppers 10 on the lower side are provided with positioning holes 18, and the limiting columns 17 are plugged into the positioning holes 18.

[0026] After the upper shell 1 is covered on the position of the lower shell 2, the locking rod 5 equipped with the tension spring 7 is inserted into the fixing slot 8 of the lower stopper 10 through the placement slot. At this time, the tension spring 7 is compressed, and then the rotating rod 3 is rotated to move the limiting square plate 12 of the locking rod 5 away from the position of the lower slot 11, thereby limiting the vertical position of the upper shell 1 in the lower shell 2; when the position of the upper shell 1 needs to be opened, the rotating rod 3 is rotated to drive the locking rod 5 to rotate. When the limiting square plate 12 of the locking rod 5 coincides with the position of the lower slot 11, under the action of the tension spring 7, the limiting square plate 12 moves upward along the lower slot 11. At this time, the rotating rod 3 is pulled up to pull the locking rod 5 out of the placement slot, thereby releasing the limiting of the upper shell 1 in the lower shell 2 by the locking rod 5, thereby facilitating the disassembly of the upper shell 1.

[0027] The first step 13 is in a trapezoidal shape, and the second step 16 is in a rectangular shape.

[0028] The diameter of the fixing slot hole 8 is larger than the diameter of the insertion hole.

[0029] Since the diameter of the fixing slot 8 is larger than the diameter of the insertion hole, the limiting square plate 12 of the locking rod 5 is convenient for limiting the position of the upper housing 1 in the vertical direction of the housing.

[0030] The depth of the annular groove 4 is the same as the thickness of the rotating rod 3 , and is used to prevent objects on the upper side of the upper housing 1 from accidentally hitting the rotating rod 3 .

[0031] A convex plate 19 is fixedly connected to the upper side of the lower shell 2 , and a groove 20 is formed inside the lower side of the upper shell 1 , and the convex plate 19 is plugged into the groove 20 .

[0032] By plugging the protruding plate 19 into the groove 20 , the upper housing 1 can be conveniently covered on the lower housing 2 .

[0033] When the utility model is in use, the voltage type sensor includes a main board 21, a secondary board 23 and a heat sink 24. First, the annular opening in the middle of the heat sink 24 of the voltage type sensor is placed on the top of the first fixed body 15, and the heat sink 24 is fixed to the top of the first fixed body 15 by a locking screw. In order to prevent the heat sink 24 and the upper shell 1 from having an installation deviation, the heat sink is positioned and installed in the upper shell 1 by three fixing columns 14, and the secondary board 23 of the voltage type sensor is installed on the lower side of the heat sink 24. The secondary board 23 is in contact with the first step 13 and the second step 16 on all sides and is threadedly connected with the first step 13 and the second step 16 by the locking screws. The height of the first step 13 and the second step 16 is greater than the height of the fixing column 14. Through the coordinated use of the first step 13, the second step 16 and the fixing column 14, the secondary board 23 is separated from the heat sink 24 by a distance, so as to avoid the phenomenon of short circuit between the contact heat sink and the secondary board. , improves the test withstand voltage value, the main board 21 of the voltage type sensor is plugged into the second fixed body 22; after the upper shell 1 is covered on the position of the lower shell 2, the locking rod 5 equipped with the tension spring 7 is inserted into the fixing slot 8 of the lower stopper 10 through the placement slot, at this time, the tension spring 7 is compressed, and then the rotating rod 3 is rotated to move the limiting square plate 12 of the locking rod 5 away from the position of the lower slot 11, thereby limiting the position of the upper shell 1 in the vertical direction of the lower shell 2; when the position of the upper shell 1 needs to be opened, the rotating rod 3 is rotated to drive the locking rod 5 to rotate, and when the limiting square plate 12 of the locking rod 5 coincides with the position of the lower slot 11, under the action of the tension spring 7, the limiting square plate 12 moves upward along the lower slot 11, and at this time, the rotating rod 3 is pulled up to pull the locking rod 5 out of the placement slot upward, thereby releasing the limiting position of the upper shell 1 in the vertical direction of the lower shell 2 by the locking rod 5, thereby facilitating the disassembly of the upper shell 1.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for increasing the withstand voltage of a voltage type sensor, characterized in that: It includes a hollow upper shell, a hollow lower shell is covered on the lower side of the upper shell, two locking rods are inserted at the diagonal positions of the upper shell and fixedly connected to the lower sides of the limiting square plate, a group of diagonal upper and lower blocks are both clamped with a lower groove, the lower block is provided with a fixed slot hole and is connected to the lower slot, the limiting square plate rotates away from the fixed slot hole on the side of the lower groove to limit the movement of the upper shell in the vertical direction of the lower shell, the upper blocks are fixedly connected at the four corners of the inner wall of the upper shell, the lower blocks are fixedly connected at the four corners of the inner wall of the lower shell, the middle side of the upper shell is fixedly connected to a first fixed body with a thread, three fixing columns are arranged on both sides of the first fixed body, a first step is symmetrically fixedly arranged on one side of the upper shell, a second step is symmetrically fixedly arranged on the other side of the upper shell, and a second fixed body with a groove is symmetrically fixedly arranged in the middle part of the lower shell.

2. The voltage-increasing type sensor withstand voltage structure according to claim 1, characterized in that: An annular groove is opened at the diagonal position on the upper side of the upper shell, a placement groove is opened in the middle of the annular groove, a rotating rod is placed in the placement groove, the lower side of the rotating rod is fixedly connected to the locking rod, a tension spring is sleeved on the upper side of the locking rod, the tension spring is located in the placement groove and contacts the rotating rod, an upper groove is opened on one side of the placement groove, the upper groove is located directly above the lower groove, and the lower sides of the other group of diagonal upper stop blocks are fixedly connected to the limiting columns, and the lower stop blocks on the lower side are opened with positioning holes, and the limiting columns are plugged into the positioning holes.

3. The voltage-increasing type sensor withstand voltage structure according to claim 2, characterized in that: The first step is in a trapezoidal shape, and the second step is in a rectangular shape.

4. The voltage-increasing type sensor withstand voltage structure according to claim 3, characterized in that: The diameter of the fixing slot hole is larger than the diameter of the insertion hole.

5. The voltage-increasing type sensor withstand voltage structure according to claim 4, characterized in that: The depth of the annular groove is the same as the thickness of the rotating rod.

6. The voltage-increasing type sensor withstand voltage structure according to claim 5, characterized in that: A convex plate is fixedly connected to the upper side of the lower shell, a groove is provided inside the lower side of the upper shell, and the convex plate is plugged into the groove.

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