Pressure transmitter convenient for heat dissipation

Abstract

The utility model discloses a pressure transmitter convenient for heat dissipation, which belongs to the technical field of pressure transmitters, and comprises a pressure transmitter main body, a heat dissipation assembly is arranged in the pressure transmitter main body, and the heat dissipation assembly is used for dissipating heat in the pressure transmitter main body. The pressure transmitter main body comprises a shell, a pressure sensor and a circuit board, the upper end of the pressure sensor is communicated with the bottom of the shell and is electrically connected with the circuit board, and the heat dissipation assembly is arranged in the shell. According to the pressure transmitter, the problems that electronic elements are damaged and the using effect is reduced due to heat accumulation of an existing pressure transmitter are solved in a targeted mode, the heat dissipation assembly can timely dissipate heat generated by circuit board elements during working, element faults caused by high temperature are effectively avoided, the working stability and reliability of the pressure transmitter body are remarkably improved, and the service life of the pressure transmitter is prolonged. And the service life of the pressure transmitter is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pressure transmitter technology, specifically a pressure transmitter that facilitates heat dissipation. Background Technology

[0002] Pressure transmitters, as devices that can accurately convert pressure into pneumatic or electric signals to achieve control and remote transmission functions, occupy a pivotal position in the process of industrial automation. In industrial practice, they are among the most commonly used sensors and are widely used in various industrial automation environments, such as petrochemical, food, and pharmaceutical industries. Whether it is detecting fluid pressure and converting it into a standard electrical signal for display and alarm, or accurately measuring and controlling pressure parameters during production, pressure transmitters play an irreplaceable and crucial role.

[0003] Pressure transmitters inevitably generate a lot of heat during continuous operation. If the heat inside the pressure transmitter cannot be dissipated, the electronic components inside the pressure transmitter will be damaged, thereby reducing the performance of the pressure transmitter. Therefore, in order to solve the above-mentioned problems, a pressure transmitter with easy heat dissipation is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a pressure transmitter that facilitates heat dissipation. By installing a heat dissipation component inside the pressure transmitter body, the problem of electronic component damage and reduced performance caused by heat accumulation in existing pressure transmitters is specifically solved. The heat dissipation component can dissipate the heat generated by the circuit board components in a timely manner, effectively avoiding component failures caused by high temperature, significantly improving the stability and reliability of the pressure transmitter body, and extending the service life of the pressure transmitter, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pressure transmitter that facilitates heat dissipation, comprising a pressure transmitter body, wherein a heat dissipation component is installed inside the pressure transmitter body, and the heat dissipation component is used to dissipate heat inside the pressure transmitter body.

[0006] The pressure transmitter body includes a housing, a pressure sensor, and a circuit board. The upper end of the pressure sensor is connected to the bottom of the housing and electrically connected to the circuit board. The heat dissipation component is disposed inside the housing, and the circuit board is installed at the center of the inner cavity of the housing.

[0007] The circuit board is fixed to the housing on both sides by connecting components, which are used to fix the position of the circuit board. Protective covers are threaded to both ends of the housing of the pressure transmitter body.

[0008] Preferably, the heat dissipation component includes a heat-conducting plate disposed on one side of the circuit board, the heat-conducting plate being a copper plate, and the surface of the heat-conducting plate having a plurality of heat sinks distributed in a circumferential pattern.

[0009] Preferably, the heat dissipation assembly further includes a vent, which is opened on the protective cover. A heat dissipation fan is installed inside one of the protective covers, and a protective frame is provided at the position of the vent on the protective cover.

[0010] Preferably, the connecting assembly includes two fixing rings, which are distributed on both sides of the circuit board and fixedly connected to the inner wall of the outer casing. Through holes are formed around the surface of the fixing rings, and bolts are inserted into the inner cavity of the through holes. Positioning sleeves that cooperate with the bolts are provided on both sides of the circuit board. The bolts pass through the through holes and are threadedly connected to the inner cavity of the positioning sleeves.

[0011] Preferably, the distance between the through holes is equal, and the positions of the positioning screw sleeves are also equal and correspond to the positions of the through holes.

[0012] Preferably, a dustproof net is snapped into the inner cavity of another protective cover, and a positioning ring is fixedly connected to the inner cavity of the outer shell at one end corresponding to the dustproof net. The positioning ring is used to limit the position of the dustproof net.

[0013] Preferably, the protective cover on which the dustproof net is installed has a slot, and the dustproof net is located in the slot.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides a pressure transmitter that facilitates heat dissipation. By installing a heat dissipation component inside the pressure transmitter body, it specifically solves the problem of electronic component damage and reduced performance caused by heat accumulation in existing pressure transmitters. The heat dissipation component can dissipate the heat generated by the circuit board components in a timely manner, effectively avoiding component failures caused by high temperature, significantly improving the stability and reliability of the pressure transmitter body, and extending the service life of the pressure transmitter.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a partial cross-sectional view of the left side of the pressure transmitter body and protective cover structure of this utility model;

[0018] Figure 2This is a partial cross-sectional view of the right side of the pressure transmitter body and protective cover structure of this utility model;

[0019] Figure 3 This is a partially exploded cross-sectional view of the pressure transmitter body and protective cover structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the protective cover structure with a slot according to the present invention.

[0021] Figure 5 This is an exploded view of the circuit board and connecting components of this utility model.

[0022] The following are the labeling elements in the diagram: 1. Pressure transmitter body; 101. Housing; 102. Pressure sensor; 103. Circuit board; 2. Heat dissipation assembly; 21. Heat conduction plate; 22. Heat sink; 23. Vent; 24. Cooling fan; 25. Protective frame; 3. Connecting assembly; 31. Fixing ring; 32. Through hole; 33. Bolt; 34. Positioning screw sleeve; 4. Protective cover; 5. Dustproof net; 6. Positioning ring; 7. Slot. Detailed Implementation

[0023] 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.

[0024] This utility model provides, for example Figures 1-5 The pressure transmitter shown includes a pressure transmitter body 1, and a heat dissipation component 2 installed inside the pressure transmitter body 1. The heat dissipation component 2 is used to dissipate heat inside the pressure transmitter body 1. The pressure transmitter body 1 includes a housing 101, a pressure sensor 102, and a circuit board 103. The upper end of the pressure sensor 102 is connected to the bottom of the housing 101 and electrically connected to the circuit board 103. The heat dissipation component 2 is disposed inside the housing 101. The circuit board 103 is installed at the center of the inner cavity of the housing 101. The two sides of the circuit board 103 are fixed inside the housing 101 by connecting components 3. The connecting components 3 are used to fix the position of the circuit board 103. Protective covers 4 are threadedly connected to both ends of the housing 101 of the pressure transmitter body 1.

[0025] When the pressure transmitter body 1 is working, the pressure sensor 102 senses the external pressure signal, converts it into an electrical signal and transmits it to the circuit board 103 for processing. The heat dissipation component 2 is arranged inside the housing 101, ready to dissipate the heat generated by the circuit board 103 at all times. At the same time, the circuit board 103 is firmly installed in the center of the inner cavity of the housing 101 through the connecting component 3 to avoid affecting the performance of the components due to positional displacement. The protective covers 4 are threaded to both ends of the housing 101 to protect the internal structure of the housing 101.

[0026] The heat dissipation component 2 can effectively solve the problem of internal heat accumulation when the pressure transmitter is working, prevent electronic components from being damaged due to overheating, and improve the stability and reliability of the equipment. The stable installation of the circuit board 103 and the setting of the protective cover 4 reduce the interference of external factors (such as collisions) on internal components, extend the service life of the equipment, and enhance its applicability in complex industrial environments.

[0027] The heat dissipation component 2 includes a heat-conducting plate 21, which is disposed on one side of the circuit board 103. The heat-conducting plate 21 is made of copper plate, and multiple heat sinks 22 are distributed circumferentially on the surface of the heat-conducting plate 21.

[0028] The heat-conducting plate 21 in the heat dissipation assembly 2 is in close contact with one side of the circuit board 103. Since the heat-conducting plate 21 is made of copper plate, it has good thermal conductivity and can quickly absorb the heat generated by the circuit board 103 during operation. The multiple heat sinks 22 distributed in a circular shape on the surface of the copper plate greatly increase the contact area with the air. After the heat is conducted through the heat-conducting plate 21 to the heat sink 22, it is quickly dissipated into the surrounding air, achieving efficient heat dissipation.

[0029] The heat dissipation component 2 is simple and efficient in design. The high thermal conductivity of the copper heat-conducting plate 21 ensures that heat can be dissipated from the circuit board 103 in a timely manner. The increased heat dissipation area of ​​the heat sink 22 further accelerates the heat dissipation speed, effectively reduces the temperature of the circuit board 103, ensures its stable operation, improves the overall heat dissipation performance and working stability of the pressure transmitter, and reduces the probability of failure due to overheating.

[0030] The heat dissipation component 2 also includes a vent 23, which is opened on the protective cover 4. A heat dissipation fan 24 is installed inside one of the protective covers 4, and a protective frame 25 is provided at the position of the vent on the protective cover 4.

[0031] The ventilation openings 23 on the protective cover 4 provide a channel for air circulation. When the internal temperature of the pressure transmitter rises, the cooling fan 24 installed inside one of the protective covers 4 starts, drawing cold air from the outside into the housing 101 through the ventilation opening 23 at the end corresponding to the cooling fan 24. The cold air flows through the circuit board 103 and the heat-conducting plate 21 and heat sink 22 set on the circuit board 103, thereby removing heat, and then is discharged from the ventilation opening 23 on the other protective cover 4, forming air convection cooling. The protective frame 25 is set at the ventilation hole position to prevent large particles of foreign objects from entering the pressure transmitter through the ventilation opening 23 and affecting the normal operation of the equipment.

[0032] The ventilation opening 23 and the cooling fan 24 work together to enhance the heat dissipation effect. Especially in high-temperature environments or when the pressure transmitter is working under high load for a long time, forced convection heat dissipation can quickly reduce the internal temperature. The protective frame 25 takes into account both heat dissipation needs and equipment protection. While ensuring smooth ventilation and heat dissipation, it prevents foreign objects from entering, avoids short circuits or damage to internal components, and improves the operational reliability of the equipment in complex environments.

[0033] The connecting component 3 includes two fixing rings 31, which are distributed on both sides of the circuit board 103 and fixedly connected to the inner wall of the housing 101. Through holes 32 are opened around the surface of the fixing rings 31, and bolts 33 are inserted into the inner cavity of the through holes 32. Positioning screw sleeves 34 that cooperate with the bolts 33 are provided on both sides of the circuit board 103. The bolts 33 pass through the through holes 32 and are threadedly connected to the inner cavity of the positioning screw sleeves 34.

[0034] The two fixing rings 31 of the connecting component 3 are respectively fixed on both sides of the inner wall of the outer shell 101. The two sides of the circuit board 103 are placed in the fixing rings 31 respectively. The through holes 32 opened around the surface of the fixing rings 31 correspond to the positions of the positioning screw sleeves 34 on the side of the circuit board 103. The bolts 33 pass through the through holes 32 and are screwed into the positioning screw sleeves 34. By tightening the bolts 33, the circuit board 103 is tightly fixed between the two fixing rings 31, thereby achieving precise fixation of the circuit board 103 in the inner shell 101.

[0035] This connecting component 3 has a simple structure and is easy to install and disassemble. Through the cooperation of bolts 33 and positioning sleeves 34, it can firmly fix the circuit board 103, preventing it from shifting or shaking due to vibration, collision or other reasons during equipment operation. This ensures the stable electrical connection between electronic components on the circuit board 103, guarantees the accuracy and stability of signal transmission in the internal circuit of the pressure transmitter, and thus improves the overall performance and reliability of the equipment. In addition, an air circulation channel is formed between the circuit board 103 and the fixing ring 31, which facilitates ventilation and heat dissipation inside the pressure transmitter body 1.

[0036] The through holes 32 are spaced at equal distances, and the positioning screw sleeves 34 are positioned at equal distances and correspond to the positions of the through holes 32. The through holes 32 on the fixing ring 31 are spaced at equal distances, so that the bolts 33 are evenly distributed on the fixing ring 31, which can apply a balanced tightening force to the circuit board 103. Similarly, the positioning screw sleeves 34 on both sides of the circuit board 103 are positioned at equal distances and correspond strictly to the positions of the through holes 32, ensuring that when the bolts 33 are screwed into the positioning screw sleeves 34, the circuit board 103 can be evenly fixed in the fixing ring 31, ensuring the flatness and stability of the circuit board 103 installation.

[0037] Another protective cover 4 has a dustproof net 5 attached to its inner cavity. The inner cavity of the outer shell 101 and the end corresponding to the dustproof net 5 are fixedly connected to a positioning ring 6. The positioning ring 6 is used to limit the position of the dustproof net 5.

[0038] Another protective cover 4 has a dustproof mesh 5 attached to its inner cavity, and a positioning ring 6 is fixedly connected to the corresponding position in the inner cavity of the outer shell 101. When the protective cover 4 is installed on the outer shell 101, the dustproof mesh 5 is tightly fitted with the positioning ring 6 under the limit of the slot 7, forming a dustproof barrier to the inside of the outer shell 101. When outside air enters the inside of the outer shell 101, it must first pass through the dustproof mesh 5 for filtration. Dust, particles and other impurities in the air are blocked on the outside of the dustproof mesh 5, and clean air can enter the interior to participate in the heat dissipation cycle.

[0039] The combination of the dustproof mesh 5 and the positioning ring 6 effectively prevents external dust from entering the pressure transmitter, reducing the accumulation of dust on the surface of the heating element and its impact on heat dissipation.

[0040] The protective cover 4 on which the dustproof net 5 is installed has a slot 7, and the dustproof net 5 is located in the slot 7.

[0041] The protective cover 4 on which the dustproof net 5 is installed has a slot 7. The edge of the dustproof net 5 is embedded in the slot 7 to achieve a tight connection between the dustproof net 5 and the protective cover 4. The size of the slot 7 is precisely matched with the edge of the dustproof net 5 to ensure that the dustproof net 5 is installed firmly and will not fall off due to vibration, airflow impact or other reasons during equipment operation.

[0042] The slot 7 design makes the dustproof net 5 easy and secure to install. Compared with other fixing methods, no additional fasteners are required, reducing installation procedures and costs. The tight snap-fit ​​can effectively reduce dust from entering the equipment from the connection between the dustproof net 5 and the protective cover 4, ensuring the dustproof effect and further improving the pressure transmitter's adaptability to dusty working environments, maintaining the cleanliness of the equipment's interior, and ensuring stable operation of the equipment.

[0043] In practical use, when using this pressure transmitter in the industrial field, firstly, the protective cover 4 is tightly installed in place through the threaded interfaces at both ends of the housing 101. One protective cover 4 has a built-in cooling fan 24 and a protective frame 25, while the other protective cover 4 has a dustproof net 5 and a slot 7, forming the first barrier for dust prevention and heat dissipation. When the device is connected to the pressure system being measured, the pressure sensor 102 senses the external pressure signal in real time, converts it into an electrical signal, and transmits it to the circuit board 103 located in the center of the inner cavity of the housing 101 and firmly fixed by the connecting component 3 for processing.

[0044] During operation, the heat generated by the circuit board 103 and the pressure sensor 102 is first quickly absorbed by the copper heat-conducting plate 21 that is in close contact with the circuit board 103. The heat sink 22 distributed around the surface of the heat-conducting plate 21 greatly increases the heat dissipation area and accelerates the diffusion of heat to the surrounding air. At the same time, when the internal temperature of the equipment rises, the cooling fan 24 starts and draws cold air from the outside into the housing 101 through the vent 23 on the protective cover 4. The cold air flows through the circuit board 103, the heat-conducting plate 21, and the heat sink 22, and after fully carrying away the heat, it is discharged from the vent 23 on the other side, forming an efficient forced convection cooling cycle.

[0045] The retaining ring 31 of the connecting component 3 cooperates with the bolt 33 and the positioning screw sleeve 34 to ensure that the circuit board 103 is firmly installed, avoiding component displacement or loosening of electrical connections due to vibration. At the same time, the gap between the retaining ring 31 and the circuit board 103 forms an auxiliary ventilation channel to further optimize the heat dissipation effect. The tight cooperation between the dustproof net 5, the positioning ring 6, and the slot 7 ensures that the air entering the equipment to participate in heat dissipation is clean and reduces the accumulation of dust on the surface of the heat-generating element, which affects the heat dissipation efficiency. This comprehensively ensures the stable operation of the pressure transmitter in complex industrial environments, achieving accurate pressure measurement and reliable heat dissipation.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure transmitter with convenient heat dissipation, comprising a pressure transmitter body (1), characterized in that: The pressure transmitter body (1) is equipped with a heat dissipation component (2) inside, which is used to dissipate heat inside the pressure transmitter body (1). The pressure transmitter body (1) includes a housing (101), a pressure sensor (102), and a circuit board (103). The upper end of the pressure sensor (102) is connected to the bottom of the housing (101) and electrically connected to the circuit board (103). The heat dissipation assembly (2) is disposed inside the housing (101), and the circuit board (103) is installed at the center of the inner cavity of the housing (101). The two sides of the circuit board (103) are fixed inside the housing (101) by the connecting component (3). The connecting component (3) is used to fix the position of the circuit board (103). The two ends of the housing (101) of the pressure transmitter body (1) are threaded with protective covers (4).

2. The pressure transmitter with easy heat dissipation according to claim 1, characterized in that: The heat dissipation component (2) includes a heat-conducting plate (21), which is disposed on one side of the circuit board (103). The heat-conducting plate (21) is a copper plate, and a plurality of heat sinks (22) are distributed circumferentially on the surface of the heat-conducting plate (21).

3. A pressure transmitter with easy heat dissipation according to claim 2, characterized in that: The heat dissipation assembly (2) also includes a vent (23), which is opened on the protective cover (4). A heat dissipation fan (24) is installed inside one of the protective covers (4), and a protective frame (25) is provided at the position of the vent on the protective cover (4).

4. A pressure transmitter with easy heat dissipation according to claim 3, characterized in that: The connecting assembly (3) includes two fixing rings (31), which are distributed on both sides of the circuit board (103) and fixedly connected to the inner wall of the outer shell (101). Through holes (32) are opened around the surface of the fixing rings (31), and bolts (33) are inserted into the inner cavity of the through holes (32). Positioning sleeves (34) that cooperate with the bolts (33) are provided on both sides of the circuit board (103). The bolts (33) pass through the through holes (32) and are threadedly connected to the inner cavity of the positioning sleeves (34).

5. A pressure transmitter with easy heat dissipation according to claim 4, characterized in that: The through holes (32) are spaced at equal distances, and the positioning screw sleeves (34) are positioned at equal distances and correspond to the positions of the through holes (32).

6. A pressure transmitter with easy heat dissipation according to claim 5, characterized in that: Another protective cover (4) has a dustproof net (5) attached to its inner cavity. The inner cavity of the outer shell (101) and the end corresponding to the dustproof net (5) are fixedly connected to a positioning ring (6). The positioning ring (6) is used to limit the position of the dustproof net (5).

7. A pressure transmitter with easy heat dissipation according to claim 6, characterized in that: The protective cover (4) on which the dustproof net (5) is installed has a slot (7), and the dustproof net (5) is located in the slot (7).

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