High-reliability digital-to-analog converter

Abstract

The utility model relates to the technical field of digital-to-analog converters, and discloses a high-reliability digital-to-analog converter which comprises a shell, a sealing element, a mounting bottom plate and a control circuit board, the control circuit board is fixedly arranged on the upper end face of the mounting bottom plate, and a clamping groove is formed in the position, close to the front end, of the upper end face of the mounting bottom plate. The sealing piece is clamped at the rear end of the shell from top to bottom in a sliding manner to form a sealing door; the mounting bottom plate is slidably clamped in the shell and is wrapped and protected by the shell, the shell comprises a shell body, a groove is formed in the position, close to the rear end, of the upper end face of the shell body, a limiting assembly is embedded in the groove, and second connecting grooves are longitudinally formed in the two sides, close to the lower end, of the rear end face of the shell body; and first connecting grooves are vertically formed in the two sides, close to the rear end, of the upper end face of the shell correspondingly. According to the utility model, the digital-to-analog converter is divided into three main body structures, the digital-to-analog converter is slidably clamped and fixedly mounted in a split combined splicing manner, the assembly can be completed without bolts, the mounting manner is simple, and the use is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of digital-to-analog converter technology, and in particular to a highly reliable digital-to-analog converter. Background Technology

[0002] A digital-to-analog converter (DAC) is a converter that transforms a discrete signal in binary digital form into an analog signal based on a standard (or reference) quantity.

[0003] In the process of developing this application, the inventors discovered the following problems with the prior art: the housing of the prior art digital-to-analog converter is generally made up of an upper housing and a lower housing fastened together with screws, which makes the housing inconvenient to disassemble and assemble; when the components inside the housing fail, it is inconvenient to repair; therefore, those skilled in the art provide a highly reliable digital-to-analog converter to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly reliable digital-to-analog converter. The converter is divided into three main structures, which are assembled and fixed by sliding snap-fit ​​using a split-type combination splicing method. Assembly can be completed without bolts, making the installation simple and convenient to use.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A highly reliable digital-to-analog converter includes a housing, a seal, a mounting base plate, and a control circuit board. The control circuit board is fixedly mounted on the upper surface of the mounting base plate. A slot is provided on the upper surface of the mounting base plate near the front end. The seal slides from top to bottom and engages with the rear end of the housing to form a sealing door.

[0007] The mounting base plate is slidably snapped into the inside of the outer shell and protected by the outer shell. The outer shell includes a housing. A groove is opened at the rear end of the upper end face of the housing, and a limit component is embedded in the groove. A second connecting groove is opened longitudinally on both sides of the lower end of the rear end face of the housing. A first connecting groove is opened vertically on both sides of the rear end face of the upper end face of the housing. An installation strip is fixedly installed on both sides of the lower end of the inner wall of the housing. A base is fixedly installed on the lower end face of the housing.

[0008] The sealing element includes two horizontal plates, and a vertical plate is fixedly installed at the lower end of the two horizontal plates; the limiting component includes a connecting spring, one end of the connecting spring is fixedly installed inside the groove and the other end is fixedly installed with a connecting block, and a locking rod is fixedly installed at the end of the connecting block away from the connecting spring.

[0009] Furthermore, heat dissipation vents are provided at the front and rear ends of both sides of the outer wall of the housing, and a cooling fan is installed inside each heat dissipation vent, with a dustproof mesh embedded in the inner wall of the vent on the outer side.

[0010] Furthermore, an installation gap is formed between the two mounting strips and the base, and the installation gap is in communication with the second connecting groove. The mounting base plate is slidably embedded in the installation gap formed between the mounting strips and the base along the second connecting groove.

[0011] Furthermore, the vertical plate slides down and is embedded inside the two No. 1 connecting slots, with its lower end engaged in the slot at the upper end of the mounting base plate.

[0012] Furthermore, a locking hole is provided at the upper midpoint of the rear end face of the vertical plate, and the locking rod is inserted through and embedded in the locking hole to complete the locking and fixing of the vertical plate.

[0013] Furthermore, mounting holes are provided at the front and rear ends of the upper ends of the two horizontal plates, and the plates are fixedly installed and used by through bolts inserted into the mounting holes.

[0014] Furthermore, the vertical height of the connecting block is greater than the depth of the groove, causing it to protrude outwards.

[0015] This utility model has the following beneficial effects:

[0016] This utility model proposes a highly reliable digital-to-analog converter, which consists of three main structures: a housing, a seal, and a mounting base for mounting the control circuit board. These three parts can be quickly slidably assembled. After assembly, the limiting components on the housing are used to lock and restrict the connection, making it less likely to fall off. Furthermore, no bolts are required for fastening, making installation more convenient and use easier. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the axial side structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Schematic diagram of the other side of the structure

[0019] Figure 3 This is a schematic diagram of the outer shell of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A;

[0021] Figure 5 For the present utility model Figure 2Enlarged schematic diagram of the structure at point B;

[0022] Figure 6 This is a schematic diagram of the limiting component of this utility model;

[0023] Figure 7 This is a schematic diagram of the sealing element of this utility model.

[0024] Legend:

[0025] 1. Outer shell; 101. Housing; 102. Connecting slot 1; 103. Mounting strip; 104. Connecting slot 2; 105. Base; 2. Sealing element; 201. Horizontal plate; 202. Mounting hole; 203. Vertical plate; 204. Snap hole; 3. Mounting base plate; 4. Dustproof net; 5. Heat dissipation vent; 6. Cooling fan; 7. Groove; 8. Limiting component; 801. Connecting spring; 802. Connecting block; 803. Locking rod; 9. Control circuit board; 10. Slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-6 The present invention provides an embodiment of a highly reliable digital-to-analog converter, comprising a housing 1, a sealing element 2, a mounting base plate 3, and a control circuit board 9. The control circuit board 9 is fixedly disposed on the upper end face of the mounting base plate 3. A slot 10 is provided on the upper end face of the mounting base plate 3 near the front end. The sealing element 2 slides from top to bottom and is engaged with the rear end of the housing 1 to form a sealing door. The mounting base plate 3 slides and is engaged inside the housing 1 and is wrapped and protected by the housing 1.

[0028] Specifically, by dividing the entire converter into three parts, which are connected by a sliding splicing method, there is no need to use bolts for fixing, making installation and disassembly faster and more convenient, and making it easier to use.

[0029] Reference Figures 1-5The outer shell 1 includes a shell 101. A groove 7 is formed on the upper end face of the shell 101 near the rear end, and a limit component 8 is embedded in the groove 7. A second connecting groove 104 is formed longitudinally on both sides of the lower end of the rear end face of the shell 101. A first connecting groove 102 is formed vertically on both sides of the upper end face of the shell 101 near the rear end. An installation strip 103 is fixedly installed on both sides of the inner wall of the shell 101 near the lower end. A base 105 is fixedly installed on the lower end face of the shell 101. An installation gap is formed between the two installation strips 103 and the base 105, and the installation gap is through the second connecting groove 104. The mounting base plate 3 is slidably embedded in the installation gap formed between the installation strips 103 and the base 105 along the second connecting groove 104.

[0030] Specifically, during use, the mounting base plate 3 can be inserted into the housing 101 from the rear end. First, the control circuit board 9 is fixed on the mounting base plate 3. The upper end of the control circuit board 9 is provided with a first-stage operational amplifier, a second-stage operational amplifier, a PTC thermistor for current limiting protection of the input circuit, and a circuit breaker for short circuit handling of the output. This structure can be understood from the prior art patent CN216820330U, which proposes a high-reliability digital-to-analog converter. It belongs to the prior art and will not be described in detail here. Then, the mounting base plate 3 with the control circuit board 9 is aligned with the second connecting groove 104 at the rear end, and it is slid into the housing 101 and placed on the mounting strip 103 and the base 105 to complete the splicing combination.

[0031] Reference Figure 7 The sealing element 2 includes two horizontal plates 201, and a vertical plate 203 is fixedly installed at the lower end of the two horizontal plates 201. The vertical plate 203 is slidably embedded in the two No. 1 connecting grooves 102 from top to bottom and its lower end is engaged in the groove 10 at the upper end of the mounting base plate 3. The two horizontal plates 201 are provided with mounting holes 202 at the front and rear ends of the upper end, and the fixed installation is completed by bolts passing through the mounting holes 202.

[0032] Specifically, during use, first align the vertical plate 203 with the two No. 1 connecting slots 102, and then insert it into the No. 1 connecting slot 102 from top to bottom to complete the installation. When the vertical plate 203 is fully inserted into the No. 1 connecting slot 102 and the lower end is located inside the slot 10, the limiting component 8 at the rear end of the housing 101 automatically inserts into the slot 204 on the vertical plate 203 to complete the limiting effect, thereby enabling the housing 1 and the sealing component 2 to be snapped and fixed with the mounting base plate 3.

[0033] Reference Figure 6The limiting component 8 includes a connecting spring 801, one end of which is fixedly disposed inside the groove 7 and the other end is fixedly disposed with a connecting block 802. A locking rod 803 is fixedly disposed at the end of the connecting block 802 away from the connecting spring 801. A locking hole 204 is provided at the midpoint of the upper end of the rear end face of the vertical plate 203. The locking rod 803 is inserted through and embedded in the locking hole 204 to complete the locking and fixing of the vertical plate 203.

[0034] Specifically, when the front end of the lever 803 is subjected to downward pressure, it retracts towards one end of the connecting block 802 and the connecting spring 801. After the force is released, the connecting spring 801 returns to its original position, pushing the connecting block 802 and the lever 803 at the rear end to return to their original position, thereby locking into the locking hole 204 on the vertical plate 203 to complete the locking and fixing.

[0035] Reference Figures 1-3 Heat dissipation vents 5 are provided on both sides of the outer wall of the shell 101 at the front and rear ends. A cooling fan 6 is installed inside each heat dissipation vent 5 and a dustproof net 4 is embedded in the inner wall of the outer side of the heat dissipation vent 5.

[0036] Specifically, the internal airflow cooling effect can be achieved through the heat dissipation vents 5 on both sides and the cooling fan 6. This is a conventional technical method and will not be described in detail here.

[0037] Reference Figures 3-4 The vertical height of the connecting block 802 is greater than the depth of the groove 7, causing it to protrude outwards;

[0038] Specifically, the height of the connecting block 802 causes it to protrude outwards, making it easy to manually operate.

[0039] Working principle: When installing and assembling the digital-to-analog converter, the control circuit board 9 can be fixed on the mounting base plate 3 first. Then, the mounting base plate 3 with the control circuit board 9 is slidably embedded into the housing 101 at the position between the base 105 and the mounting strip 103. Then, the sealing member 2 is slid into the rear end of the housing 101 from top to bottom and the lower end of the sealing member 2 is made to be inserted into the slot 10 on the mounting base plate 3.

[0040] Secondly, after the seal 2 is embedded into the slot 10, the limiting component 8 set at the rear end of the housing 101 automatically pops out and inserts into the slot 204 on the seal 2 to complete the snap-fit ​​fixation, thus completing the splicing, assembly, installation and use of the entire digital-to-analog converter.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-reliability digital-to-analog converter comprising a housing (1), a seal (2), a mounting base plate (3) and a control circuit board (9), characterized in that: The control circuit board (9) is fixedly arranged at the upper end surface of the mounting bottom plate (3), a clamping groove (10) is arranged at the front end of the upper end surface of the mounting bottom plate (3), and the sealing element (2) is slidably clamped at the rear end of the shell (1) to form a sealing door. The mounting bottom plate (3) is slidably clamped in the shell (1) and is protected by the shell (1), the shell (1) comprises a shell body (101), a recess (7) is arranged at the rear end of the upper end surface of the shell body (101), a limiting assembly (8) is embedded in the recess (7), a No. 2 connecting groove (104) is longitudinally arranged at the lower end of the rear end surface of the shell body (101), a No. 1 connecting groove (102) is vertically arranged at the upper end surface of the shell body (101), a mounting strip (103) is fixedly arranged at the lower end of the inner wall of the shell body (101), and a base (105) is fixedly arranged at the lower end surface of the shell body (101). The sealing element (2) comprises two horizontal plates (201), and vertical plates (203) are fixedly arranged at the lower ends of the two horizontal plates (201); the limiting assembly (8) comprises a connecting spring (801), one end of the connecting spring (801) is fixedly arranged in the recess (7), the other end of the connecting spring (801) is fixedly arranged with a connecting block (802), and the connecting block (802) is fixedly arranged with a clamping rod (803) away from the connecting spring (801).

2. The high reliable digital-to-analog converter of claim 1, wherein: The shell body (101) is provided with a heat dissipation opening (5) at the front and rear ends of the outer wall of each of the two sides, a heat dissipation fan (6) is arranged in each heat dissipation opening (5), and a dustproof net (4) is embedded in the inner wall of the heat dissipation opening (5).

3. The high reliable digital-to-analog converter of claim 1, wherein: The mounting gap between the two mounting strips (103) and the base (105) is in communication with the No. 2 connecting groove (104), and the mounting bottom plate (3) is slidably embedded in the mounting gap between the mounting strip (103) and the base (105).

4. The high reliable digital-to-analog converter of claim 1, wherein: The vertical plate (203) is slidably embedded in the two No. 1 connecting grooves (102) from top to bottom, and the lower end is clamped in the clamping groove (10) of the upper end of the mounting bottom plate (3).

5. The high reliable digital-to-analog converter of claim 1, wherein: A clamping hole (204) is arranged at the rear end of the vertical plate (203) and at the midpoint of the upper end, and the clamping rod (803) is embedded in the clamping hole (204) to achieve clamping and fixing of the vertical plate (203).

6. The high reliable digital-to-analog converter of claim 1, wherein: Two horizontal plates (201) are arranged at the front and rear ends of the upper end surface, and the clamping of the vertical plate (203) is achieved by embedding the clamping rod (803) in the clamping hole (204).

7. The high reliable digital-to-analog converter of claim 1, wherein: The vertical height of the connecting block (802) is greater than the depth of the recess (7), so that it protrudes outward.

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