A new modular measurement and control device

Abstract

The present invention discloses a modular novel measurement and control device, comprising a main module and a functional module, wherein the main module comprises a first shell with at least one opening on one side and a cavity located in the first shell, wherein a plurality of first connecting parts are arranged in the cavity, wherein the functional module comprises a second shell with a functional circuit board arranged therein, wherein the second shell is provided with a second connecting part detachably connected to the first connecting part, wherein the first shell and at least two of the second shells are connected via the first connecting part and the second connecting part to form the shell of the measurement and control device, wherein a main functional circuit board electrically connected to the functional circuit board is further arranged on the inner wall of the cavity, wherein a complete measurement and control device is formed by splicing a plurality of functional modules and a main module, wherein when a certain functional circuit board fails, the corresponding functional module can be replaced, and compared with the situation in which the entire measurement and control device is disassembled and then the corresponding functional circuit board is replaced, the debugging time is greatly saved.

Description

Technical Field

[0001] The present invention relates to the technical field of line protection, and in particular to a modular novel measurement and control device. Background Art

[0002] The measurement and control device is a complete set of line protection devices with current, voltage protection and three-phase reclosing as basic configurations. It is suitable for directional line protection and measurement and control in non-directly grounded systems or resistor-grounded systems with voltage levels of 35kV and below. It can be installed on-site in the switch cabinet or installed in the control room in a group panel. The measurement and control device has the functions of remote signaling, remote control, remote measurement and remote adjustment, which can upload the data information of the protection devices inside the switch cabinet and control the action of the devices. The existing measurement and control device, such as the utility model patent with application number CN201320014875.8, includes a panel, a frame and a back panel. The panel and the back panel are respectively connected to the two ends of the frame. A plurality of strip grooves are arranged in the frame, and the circuit board is clamped in the strip groove. Since the circuit board is directly clamped in the strip groove, there is a risk of electric shock when the circuit board is removed alone during the debugging of the measurement and control device. Therefore, during the debugging process, when a circuit board failure occurs, the entire measurement and control device needs to be disassembled. After installing a new measurement and control device, the entire measurement and control device needs to be reset and debugged again. The whole process is both time-consuming and laborious.

[0003] Another example is the utility model patent with application number CN 201620044815.4, which includes a box and a plug-in board. The plug-in board is provided with a plurality of fixings for fixing the circuit board. The plug-in board is fixed in the box through mounting grooves and fasteners. Although the utility model centrally plugs the circuit board into the plug-in board, the plug-in board is fixed inside the box through fasteners, so during the debugging process, the plug-in board is also difficult to disassemble.

[0004] In summary, the existing measurement and control devices all have the problem of being difficult to replace the circuit board separately during the debugging process, which in turn causes the debugging process to be cumbersome, time-consuming and labor-intensive. Summary of the invention

[0005] The purpose of the present invention is to provide a new modular measurement and control device in view of the defects and shortcomings in the prior art. A complete measurement and control device is formed by splicing several functional modules and a main module. When a functional module fails, the corresponding functional module can be replaced. Compared with the situation where the entire measurement and control device needs to be dismantled and then the corresponding functional circuit board needs to be replaced, the present invention greatly saves debugging time and improves production efficiency.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a modular novel measurement and control device, comprising a main module and a functional module, wherein the main module comprises a first shell with at least one opening and a cavity in the first shell, wherein a plurality of first connecting parts are arranged in the cavity, and the functional module comprises a second shell with a functional circuit board arranged therein, wherein the second shell is provided with a second connecting part detachably connected to the first connecting part, wherein the first shell and at least two of the second shells are connected to form a shell of the measurement and control device through the first connecting part and the second connecting part, and a main functional circuit board electrically connected to the functional circuit board is also arranged on the inner wall of the cavity;

[0008] Preferably, the first connecting portion includes a hook located on the upper end surface of the first shell and a first slide groove located on the lower end surface of the first shell, and the second connecting portion includes a first boss located on the upper surface of the second shell and a first slider located on the lower surface of the second shell, the hook is fixedly connected to the first boss, and the first slide groove is slidably connected to the first slider;

[0009] Preferably, the first shell includes an upper end face, a front end face and a lower end face, the length of the upper end face is less than the length of the lower end face, the second shell is a rectangular parallelepiped structure with a length equal to that of the lower end face, and the upper surface of the second shell is provided with a third connection structure for facilitating the installation of the measurement and control device;

[0010] Preferably, the second shell includes a side A and a side B, the side A is provided with a fourth connecting portion, the side B is provided with a fifth connecting portion matching the fourth connecting portion, and two adjacent second shells are spliced ​​together into a whole through the fourth connecting portion and the fifth connecting portion;

[0011] Preferably, the fourth connecting portion is a second slide groove, the fifth connecting portion is a second slider having the same size and shape as the second slide groove, and the second slider of the preceding second housing is slidably assembled in the second slide groove of the following second housing;

[0012] Preferably, a first through hole extending from front to back is provided in the second shell, a slide groove is provided in the first through hole, the width of the slide groove matches the thickness of the functional circuit board, and the functional circuit board is fixedly arranged in the slide groove;

[0013] Preferably, the upper and lower surfaces of the first through hole are respectively provided with a slide groove, and the functional circuit board is slidably arranged in the upper and lower slide grooves;

[0014] Preferably, a second convex block is provided on one side of the slideway groove, an elastic body bent toward the slideway groove is provided at the end of the second convex block, a second through hole matching the size and shape of the elastic body is provided on the functional circuit board, and the second through hole is sleeved on the elastic body;

[0015] Preferably, an annular groove is provided at one end of the second housing away from the front end surface, a rear cover is clamped in the annular groove, and an opening having the same shape and size as the functional circuit board is provided on the rear cover;

[0016] Preferably, the first shell, the second shell and the back cover are all made of plastic.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] 1. The present invention forms a complete measurement and control device by splicing a plurality of functional modules and a main module. When a functional module fails, the corresponding functional module can be replaced. Compared with the situation where the entire measurement and control device needs to be disassembled and then the corresponding functional circuit board needs to be replaced, the present invention greatly saves debugging time and improves production efficiency;

[0019] 2. The present invention arranges a hook on the upper end face of the first shell, a first boss engaged with the second shell on the upper surface, a first slide groove on the lower end face of the first shell, and a first slider slidably engaged with the second shell on the lower surface. This not only fixes the second shell on the first shell, but also limits the assembly position of the second shell in the first shell, so that the assembly position of the second shell will not deviate greatly, ensuring that the circuit of the test device can be connected normally.

[0020] 3. The present invention connects two adjacent second shells into a whole by respectively arranging the fourth connecting part and the fifth connecting part that cooperate with each other on the A side and the B side of the second shell, thereby further improving the overall structural strength of the measurement and control device formed by splicing the first shell and the second shell, and improving the working reliability of the test device;

[0021] 4. The present invention modularizes each function according to the functional circuit board and assembles them independently in the main module, so that different models of products can be assembled only by splicing, making production flexible and improving production efficiency;

[0022] 5. The present invention adopts a first shell and a second shell made of plastic material, which not only reduces the weight of the measurement and control device, making installation, disassembly and transfer more convenient and labor-saving, but also enhances the insulation performance of the measurement and control device and avoids breakdown damage caused by overvoltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a right view structural diagram of the measurement and control device;

[0025] Figure 2 It is a schematic diagram of the AA cross-sectional structure;

[0026] Figure 3 is a right side structural schematic diagram of the first shell;

[0027] Figure 4 is a schematic diagram of the axial structure of the first housing;

[0028] Figure 5 It is a schematic diagram of the enlarged structure at B;

[0029] Figure 6 is a schematic diagram of the axial structure of the second housing;

[0030] Figure 7 It is a schematic diagram of the enlarged structure at C;

[0031] Figure 8 is a schematic diagram of the axial structure of the second housing in another direction;

[0032] Fig. 9 It is a schematic diagram of the enlarged structure at D;

[0033] Fig.10 It is a structural schematic diagram of a functional circuit board;

[0034] Fig.11 It is a schematic diagram of the structure of the back cover;

[0035] Fig.12 It is a schematic diagram of the axial structure of the side-mounted device.

[0036] Among them, 1. main module; 11. first shell; 111. upper end face; 112. front end face; 113. lower end face; 114. hook; 115. first slide groove; 12. cavity; 13. main functional circuit board; 2. functional module; 21. functional circuit board; 22. second shell; 221. upper surface; 222. first boss; 223. lower surface; 224. first slider; 225. A side; 2251. second slide groove; 226. B side; 2261. second slider; 227. first through hole; 228. slide groove; 229. second protrusion; 2210. elastomer; 211. second through hole; 2211. annular groove; 2212. back cover; 2213. opening. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the 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.

[0038] The purpose of the present invention is to provide a new modular measurement and control device in view of the defects and shortcomings in the prior art. A complete measurement and control device is formed by splicing several functional modules and a main module. When a functional module fails, the corresponding functional module can be replaced. Compared with the situation where the entire measurement and control device needs to be dismantled and then the corresponding functional circuit board needs to be replaced, the present invention greatly saves debugging time and improves production efficiency.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1 to 12As shown, the present invention provides a modular novel measurement and control device, including a main module 1 and a plurality of functional modules 2, the main module 1 including a first shell 11 with at least one opening and a cavity 12 located in the first shell 11, a plurality of first connecting parts are arranged in the cavity 12, the functional module 2 includes a second shell 22 with a functional circuit board 21 arranged therein, the second shell 22 is provided with a second connecting part detachably connected to the first connecting part, the first shell 11 and at least two second shells 22 are connected through the first connecting part and the second connecting part to form the shell of the measurement and control device, a main functional circuit board 13 electrically connected to the functional circuit board 21 is also arranged on the inner wall of the cavity 12, this modular assembly method not only improves the production efficiency of the measurement and control device, but also improves the assembly flexibility, and when a certain functional module 2 fails, the new functional module 2 can be separately disassembled, replaced and debugged without re-debugging the entire measurement and control device, which greatly saves the test time and shortens the maintenance cycle.

[0041] The first shell 11 can be a structure with one side opening or a structure with multiple sides opening. To facilitate the assembly of the second shell 22, the first shell 11 in the present invention is preferably a structure with three sides opening, that is, the first shell 11 includes an upper end face 111, a front end face 112 and a lower end face 113. The upper end face 111, the front end face 112 and the lower end face 113 together form a cavity 12. The cavity 12 is a trapezoidal structure with a short top and a long bottom. The second shell 22 is assembled in the cavity 12. The first connecting portion includes a hook 114 arranged on the upper end face 111 of the first shell 11 and a first slide groove 115 arranged on the lower end face 113. The second connecting portion includes a first boss 222 arranged on the upper surface 221 of the second shell 22 and a first boss 222 arranged on the second end face 113. The first slider 224 on the lower surface 223 of the shell 22, the first boss 222 and the hook 114 are mutually engaged, the first slider 224 and the first slide groove 115 are slidably matched, the shape of the first slider 224 is the same as the shape of the first slide groove 115, and the cross-sectional dimension matches the cross-sectional dimension of the first slide groove 115. Furthermore, the cross-sectional width of the first slider 224 is 0.5-1mm smaller than the cross-sectional width of the first slide groove 115 on one side, so that the first slider 224 can not only slide smoothly in the first slide groove 115, but also ensure that the position of the first slider 224 in the first slide groove 115 will not deviate significantly, thereby ensuring the assembly position accuracy of the second shell 22 and the first shell 11.

[0042] The length of the upper end face 111 is smaller than the length of the lower end face 113, and the second shell 22 is a rectangular structure with the same length as the lower end face 113, so that when the second shell 22 is assembled on the first shell 11, the upper surface 221 of the second shell 22 can protrude a certain distance from the upper end face 111, and a third connection part for installation with an external switch cabinet or control room is provided on the part of the second shell 22 protruding from the upper end face 111, and the measurement and control device is installed in the switch cabinet or control room through the third connection part. The third connection part can be a threaded hole, and the measurement and control device is installed with the switch cabinet or control room through bolts. The third connection part can also be a card slot, and the measurement and control device is installed with the protrusion on the switch cabinet or control room through the card slot. As long as the measurement and control device can be installed in the switch cabinet or control room through the third connection part, the specific structure of the third connection part is not limited.

[0043] The second shell 22 includes an A side 225 and a B side 226, a fourth connecting portion is provided on the A side 225, and a fifth connecting portion matched with the fourth connecting portion is provided on the B side 226, the fourth connecting portion is a second slide groove 2251, and the fifth connecting portion is a second slider 2261 with the same shape as the second slide groove 2251 and a cross-sectional size matching the second slide groove 2251. When splicing the second shells 22, the second slider 2261 of the previous second shell 22 is slidably assembled in the second slide groove 2251 of the subsequent second shell 22, so that the two adjacent second shells 22 are spliced ​​together as a whole, further ensuring that the plurality of second shells 22 snap-fitted and fixed on the first shell 11 will not change in position, thereby improving the overall structural strength of the measurement and control device. Similarly, to ensure that the second slider 2261 can be smoothly inserted into the second slide groove 2251 and the insertion position will not deviate significantly, it is preferred that the cross-sectional width of the second slider 2261 is 0.5-1 mm smaller than the cross-sectional width of the second slide groove 2251 on one side.

[0044] A first through hole 227 is provided in the second housing 22, and a slide groove 228 is provided in the first through hole 227. Similarly, to ensure that the functional circuit board 21 can be smoothly inserted into the first slide groove 228 and the insertion position does not deviate greatly, preferably, the cross-sectional width of the slide groove 228 is 0.5-1 mm smaller than the thickness of the functional circuit board 21 on one side, wherein a slide groove 228 is provided on the upper and lower surfaces of the first through hole 227, respectively. By inserting the upper and lower ends of the functional circuit board 21 into the slide groove 228, respectively, the installation stability of the functional circuit board 21 is improved;

[0045] A second protrusion 229 is provided on one side of the slide groove 228, and an elastic body 2210 bent in the direction of the slide groove 228 is provided at the end of the second protrusion 229. A second through hole 211 with the same shape as the elastomer 2210 and a cross-sectional size matching the cross-sectional size of the elastomer 2210 is provided on the functional circuit board 21. The second through hole 211 is sleeved on the elastomer 2210 to fix the functional circuit board 21, so that the functional circuit board 21 is in good contact with the main functional circuit board 13, thereby improving the working reliability of the testing device. Similarly, to ensure that the second through hole 211 can be smoothly inserted into the elastomer 2210, it is preferred that the cross-sectional length and width of the second through hole 211 are 0.5-1mm smaller than the cross-sectional length and width of the elastomer 2210 on one side.

[0046] An annular groove 2211 is provided at one end of the second shell 22 away from the front end face 112, and a back cover 2212 is clamped in the annular groove 2211. An opening 2213 is provided on the back cover 2212. The shape of the opening 2213 is the same as that of the functional circuit board 21, and the cross-sectional size is the same as the size of the connection between the functional circuit board 21 and the outside world. By providing the back cover 2212, it is further ensured that the functional circuit board 21 will not fall off from the first through hole 227, and the functional circuit board 21 is electrically connected to other devices through the opening 2213; the first shell 11, the second shell 22 and the back cover 2212 are all made of insulating plastic material. Compared with the situation of using a metal shell, the shell composed of the first shell 11, the second shell 22 and the back cover 2212 of the present invention has good insulation performance, which can avoid damage to the internal functional circuit board 21 due to overvoltage breakdown, further improving the service life of the functional circuit board 21, and the plastic shell is light in weight, making outdoor assembly, disassembly and transportation more convenient and labor-saving.

[0047] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A new modular measurement and control device, characterized in that: The main module comprises a first shell with at least one opening and a cavity in the first shell, wherein a plurality of first connecting parts are arranged in the cavity, and the functional module comprises a second shell with a functional circuit board arranged therein, wherein the second shell is provided with a second connecting part detachably connected to the first connecting part, wherein the first shell and at least two of the second shells are connected to form a shell of the measurement and control device through the first connecting part and the second connecting part, and a main functional circuit board electrically connected to the functional circuit board is also arranged on the inner wall of the cavity; The first connection part includes a hook located on the upper end surface of the first shell and a first slide groove located on the lower end surface of the first shell, and the second connection part includes a first boss located on the upper surface of the second shell and a first slider located on the lower surface of the second shell, the hook is fixedly connected to the first boss, and the first slide groove is slidably connected to the first slider; The first shell comprises an upper end face, a front end face and a lower end face, the length of the upper end face is shorter than the length of the lower end face, the second shell is a rectangular parallelepiped structure having a length equal to that of the lower end face, and the upper surface of the second shell is provided with a third connection structure for facilitating the installation of the measurement and control device; A first through hole is provided in the second housing and is passed through from front to back. A slide groove is provided on the upper and lower surfaces of the first through hole respectively. The functional circuit board is slidably arranged in the upper and lower slide grooves. A second protrusion is arranged on one side of the slide groove, an elastic body bent toward the slide groove is arranged at the end of the second protrusion, a second through hole matching the size and shape of the elastic body is arranged on the functional circuit board, and the second through hole is sleeved on the elastic body.

2. The modular novel measurement and control device according to claim 1 is characterized in that: The second shell includes side A and side B, the side A is provided with a fourth connecting part, the side B is provided with a fifth connecting part matching with the fourth connecting part, and two adjacent second shells are spliced ​​together through the fourth connecting part and the fifth connecting part to form a whole.

3. The modular novel measurement and control device according to claim 2 is characterized in that: The fourth connection part is a second slide groove, the fifth connection part is a second slider whose size and shape match the second slide groove, and the second slider of the front second shell is slidably assembled in the second slide groove of the rear second shell.

4. The modular novel measurement and control device according to claim 3 is characterized in that: A slide groove is provided in the first through hole, the width of the slide groove matches the thickness of the functional circuit board, and the functional circuit board is fixedly arranged in the slide groove.

5. The modular novel measurement and control device according to claim 1 is characterized in that: An annular groove is provided at one end of the second shell away from the front end surface, a rear cover is clamped in the annular groove, and an opening with a shape and size matching the functional circuit board is formed on the rear cover.

6. The modular novel measurement and control device according to claim 5 is characterized in that: The first shell, the second shell and the back cover are all made of plastic.

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