High-temperature-resistant limit switch shell

Abstract

The utility model discloses a high temperature resistant limit switch housing, belonging to the switch housing technical field, comprising a housing, the upper surface of the housing is fixedly connected with a brake, the upper surface of the housing is fixedly connected with a temperature monitor, the upper surface of the housing is fixedly connected with a motor, the surface of the housing is fixedly connected with an isolation plate, and the isolation plate is fixedly connected with a motor. A sliding groove is formed in the partition plate, first limiting columns are fixedly connected to the surface of the sliding groove, and meanwhile the first limiting columns are symmetrically distributed relative to the center of the sliding groove. According to the high-temperature-resistant limit switch shell, the heat dissipation plate is installed on the surface of the limit switch shell, and when the temperature of the surface of the shell is too high, the motor drives the heat dissipation plate to slide on the surface of the limit switch shell, so that the contact area between the heat dissipation plate and the limit switch shell is increased, and new cold air can make contact with the surface of the heat dissipation plate more frequently; therefore, the surface temperature of the limit switch shell can be rapidly reduced.

Description

Technical Field

[0001] This utility model relates to the field of switch housing technology, specifically a high-temperature resistant limit switch housing. Background Technology

[0002] The high-temperature resistant limit switch housing is an important component of the limit switch. It mainly protects the internal components from the influence of the external environment, while providing necessary electrical insulation and high-temperature resistance.

[0003] When performing equipment maintenance or repair work, if it is necessary to open the cover of the limit switch, due to its special design structure, it is only possible to operate the latches on the cover with special tools. Operators often need to use a lot of force to pry the latches. During the prying process, strong action and reaction forces are generated between the tool and the latches. This high-intensity stress is concentrated at the connection part of the latches, making the latches very prone to breakage. Once the latches break, it will not only make it difficult for the cover to close and seal properly, but also affect the protection effect of the internal components of the limit switch.

[0004] To overcome the above-mentioned defects, prior art 1 (Chinese patent application number CN201710668514.8, application date 2017-08-07) provides a switch housing with a snap-fit ​​structure including a snap-fit ​​platform formed on the bottom shell and an elastic snap hook formed on the inner side of the cover. A hook platform suitable for snapping with the snap-fit ​​platform is formed on the inner side of the end of the elastic snap hook, and an outwardly protruding pressing boss is formed on the outer side of the elastic snap hook. After the cover is closed, there is a gap between the lower side of the pressing boss and the corresponding part of the bottom shell suitable for the fingertip to be inserted. The cover is easy to operate when it is open and the cover is reliable when it is closed.

[0005] During use, the aforementioned device cannot cool down its casing when exposed to high temperatures, causing the contact points to detach due to excessive heat. This results in the switch failing to connect properly or short-circuiting, and also affects the measurement accuracy of the sensor, leading to deviations or malfunctions during operation, thus impacting the stability and safety of the device.

[0006] To address the aforementioned issues, there is an urgent need for innovative design based on the existing switch housing. Utility Model Content

[0007] The purpose of this utility model is to provide a high-temperature resistant limit switch housing to solve the problems mentioned in the background art, such as the housing being unable to cool down in high-temperature environments, resulting in excessively high temperatures that cause contact points to detach, making the switch unable to connect properly or causing a short circuit, and affecting the measurement accuracy of the sensor, leading to deviations or malfunctions in the equipment during operation, thus affecting the stability and safety of the equipment.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant limit switch housing, comprising a housing, a brake fixedly connected to the upper surface of the housing, a temperature monitor fixedly connected to the upper surface of the housing, and a motor fixedly connected to the upper surface of the housing.

[0009] An isolation plate is fixedly connected to the surface of the shell, and a sliding groove is provided inside the isolation plate. A first limiting post is fixedly connected to the surface of the sliding groove, and the first limiting post is symmetrically distributed about the center of the sliding groove.

[0010] A heat dissipation plate is fixedly connected to the surface of the first limiting post, and the heat dissipation plate slides on the surface of the sliding groove.

[0011] The surface of the housing is fixedly connected to a second limiting post, and the surface of the second limiting post is slidably connected to a heat dissipation cover.

[0012] Preferably, the output end of the motor is fixedly connected to a bidirectional threaded rod, and a fixing block is fixedly connected to the surface of the bidirectional threaded rod.

[0013] Preferably, the heat sink is fixedly connected to the surface of the fixing block.

[0014] Preferably, a baffle is fixedly connected to the end of the bidirectional threaded rod, and an upper magnet is fixedly connected to the surface of the baffle.

[0015] Preferably, the second limiting post is symmetrically distributed about the center of the heat dissipation cover.

[0016] Preferably, a first spring is fixedly connected to the surface of the heat dissipation cover, and the other end of the first spring is fixedly connected to the housing.

[0017] Preferably, a lower magnet is fixedly connected to the surface of the heat dissipation cover, and the magnetic poles on the surface of the lower magnet are opposite to the magnetic poles on the surface of the upper magnet.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the high-temperature resistant limit switch housing adopts a novel structural design, the specific details of which are as follows:

[0019] The high-temperature resistant limit switch housing has a heat sink installed on its surface. When the surface temperature of the housing is too high, the motor drives the heat sink to slide on the surface of the limit switch housing. This not only increases the contact area between the heat sink and the limit switch housing, but also allows fresh cool air to come into contact with the surface of the heat sink more frequently, thereby achieving a rapid reduction in the surface temperature of the limit switch housing.

[0020] Furthermore, limit rods are installed on the surface of the housing to provide support and constraint for the heat sink and heat sink cover, and to improve the stability of the device during use;

[0021] The high-temperature resistant limit switch housing, through the connection of a magnet and a first spring, allows the heat sink cover to slide back and forth on the surface of the second limit post, which can actively change the airflow state around the heat sink cover. When the heat sink cover slides into the housing, it will compress the hot air inside and expel it quickly. When the heat sink cover returns to the initial position under the action of the first spring, the cold air outside will be quickly drawn in.

[0022] Furthermore, when internal components need to be inspected or maintained, the heat sink can be easily slid open to provide operating space and reduce the time spent on maintenance.

[0023] The high-temperature resistant limit switch housing features a heat sink that slides by two magnets with opposite poles. This significantly reduces mechanical wear, improves equipment reliability and durability, and allows the attractive or repulsive forces between the magnets to adaptively adjust according to changes in distance. This ensures that the movement of components such as the heat sink remains within a reasonable range, achieving adaptive adjustment for different operating conditions and ensuring that the equipment's heat dissipation effect is not affected. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connection structure between the housing and the temperature monitor of this utility model;

[0025] Figure 2 This is a schematic diagram of the connection structure between the housing and the brake of this utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the No. 1 limiting post and the heat sink of this utility model;

[0027] Figure 4 This is a schematic diagram of the connection structure between the No. 1 limiting post and the sliding groove of this utility model;

[0028] Figure 5 This is a schematic diagram of the connection structure between the bidirectional threaded rod and the motor of this utility model;

[0029] Figure 6 This is a schematic diagram of the connection structure between the magnet and the baffle in this utility model;

[0030] Figure 7 This is a schematic diagram of the connection structure between the heat dissipation cover and the No. 1 spring of this utility model.

[0031] In the diagram: 1. Housing; 2. Brake; 3. Temperature monitor; 4. Motor; 5. Bidirectional threaded rod; 6. Fixing block; 7. Heat sink; 8. First limit post; 9. Isolation plate; 10. Sliding groove; 11. Baffle; 12. Upper magnet; 13. Heat sink cover; 14. Second limit post; 15. First spring; 16. Lower magnet. Detailed Implementation

[0032] 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.

[0033] Example 1: By connecting the housing 1, the first limiting post 8, and the second limiting post 14, the stability of the device is improved, such as... Figures 1-2 As shown:

[0034] The device includes a housing 1, a brake 2 is fixedly connected to the upper surface of the housing 1, a temperature monitor 3 is fixedly connected to the upper surface of the housing 1, and a motor 4 is fixedly connected to the upper surface of the housing 1.

[0035] An isolation plate 9 is fixedly connected to the surface of the housing 1, and a sliding groove 10 is provided inside the isolation plate 9. A first limiting post 8 is fixedly connected to the surface of the sliding groove 10. The first limiting post 8 is symmetrically distributed about the center of the sliding groove 10. A heat dissipation plate 7 is fixedly connected to the surface of the first limiting post 8, and the heat dissipation plate 7 slides on the surface of the sliding groove 10. A second limiting post 14 is fixedly connected to the surface of the housing 1, and a heat dissipation cover 13 is slidably connected to the surface of the second limiting post 14.

[0036] A temperature monitor 3 is installed on the upper surface of the housing 1. The temperature monitor 3 can monitor the temperature changes of the surrounding environment or key internal parts of the housing 1 in real time and transmit the signal to the motor 4. The housing 1 protects these components from external physical impacts, dust, moisture and other adverse factors, ensuring their normal operation. Through the sliding connection with the second limiting post 14, the heat dissipation cover 13 can adjust its position within a certain range to make the heat dissipation channel more unobstructed and improve the heat dissipation efficiency. When it is necessary to inspect or maintain the internal components, the heat dissipation cover 13 can be easily slid open to provide operating space and further enhance the overall heat dissipation effect, ensuring that the device can effectively dissipate heat under different working conditions and prevent equipment failure or performance degradation due to overheating.

[0037] In embodiment two, unlike embodiment one, the connection between the motor 4, the heat sink 7, and the fixing block 6 is configured to allow the heat sink 7 to slide on the surface of the sliding groove 10, as shown below. Figures 3-4 As shown:

[0038] The output end of the motor 4 is fixedly connected to a bidirectional threaded rod 5, and a fixing block 6 is fixedly connected to the surface of the bidirectional threaded rod 5. The heat sink 7 is fixedly connected to the surface of the fixing block 6. A baffle 11 is fixedly connected to the end of the bidirectional threaded rod 5, and an upper magnet 12 is fixedly connected to the surface of the baffle 11.

[0039] When the temperature monitor 3 detects that the surface temperature of the housing 1 is too high, it will cause the motor 4 to drive the bidirectional threaded rod 5 at the output end to work. A fixing block 6 and a heat sink 7 are installed on the surface of the bidirectional threaded rod 5, and the heat sink 7 is on the surface of the sliding groove 10, thereby driving the heat sink 7 to slide on the surface of the sliding groove 10. This not only increases the heat dissipation area of ​​the housing 1, but also effectively allows the heat to be conducted away in time, preventing the surface temperature of the housing 1 from becoming too high. At the same time, it improves the protection of the limit switch. The bidirectional threaded rod 5 realizes the conversion from rotary motion to linear motion. The structure of the bidirectional threaded rod 5 makes it easy to change the direction of motion without a complicated reversing mechanism, thus improving the heat dissipation efficiency of the housing 1.

[0040] In Example 3, unlike Example 2, the heat sink 13 is vibrated to dissipate heat by connecting the first spring 15, the upper magnet 12, and the lower magnet 16. Figures 5-7 As shown:

[0041] The second limiting post 14 is symmetrically distributed about the center of the heat dissipation cover 13. A first spring 15 is fixedly connected to the surface of the heat dissipation cover 13, and the other end of the first spring 15 is fixedly connected to the housing 1. A lower magnet 16 is fixedly connected to the surface of the heat dissipation cover 13, and the magnetic poles on the surface of the lower magnet 16 are opposite to the magnetic poles on the surface of the upper magnet 12.

[0042] When the motor 4 is working, it drives the baffle 11 at the end of the bidirectional threaded rod 5 to rotate. An upper magnet 12 is installed on the surface of the baffle 11, and a lower magnet 16 is installed on the surface of the heat sink 13. The magnetic poles on the surface of the lower magnet 16 are opposite to those on the surface of the upper magnet 12. When the two magnets are parallel, the opposite magnetic poles cause the heat sink 13 to slide along the surface of the second limiting post 14 into the housing 1. At the same time, the first spring 15 on the surface of the heat sink 13 also slides into the housing 1. When the two magnets move away from each other, the first spring 15 causes the heat sink 13 to return to its initial position. Through the connection between the magnet and the first spring 15, the heat sink 13 slides back and forth on the surface of the second limiting post 14, which can actively change the airflow state around the heat sink 13. When the heat sink 13 slides into the housing 1, it will compress the hot air inside and expel it quickly. When the heat sink 13 returns to its initial position under the action of the first spring 15, the cold air outside will be quickly drawn in, and the heat can be dissipated from the inside of the device more effectively. It is especially suitable for equipment with high heat dissipation requirements.

[0043] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] 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 high-temperature resistant limit switch housing, comprising a housing (1), wherein a brake (2) is fixedly connected to the upper surface of the housing (1), a temperature monitor (3) is fixedly connected to the upper surface of the housing (1), and a motor (4) is fixedly connected to the upper surface of the housing (1). Its features are: The surface of the housing (1) is fixedly connected to an isolation plate (9), and a sliding groove (10) is provided inside the isolation plate (9). A first limiting post (8) is fixedly connected to the surface of the sliding groove (10), and the first limiting post (8) is symmetrically distributed about the center of the sliding groove (10). The surface of the first limiting post (8) is fixedly connected to a heat sink (7), and the heat sink (7) slides on the surface of the sliding groove (10); The surface of the housing (1) is fixedly connected to a second limiting post (14), and the surface of the second limiting post (14) is slidably connected to a heat dissipation cover (13).

2. The high-temperature resistant limit switch housing according to claim 1, characterized in that: The output end of the motor (4) is fixedly connected to a bidirectional threaded rod (5), and a fixing block (6) is fixedly connected to the surface of the bidirectional threaded rod (5).

3. The high-temperature resistant limit switch housing according to claim 2, characterized in that: The surface of the fixing block (6) is fixedly connected to the heat sink (7).

4. The high-temperature resistant limit switch housing according to claim 3, characterized in that: The end of the bidirectional threaded rod (5) is fixedly connected to a baffle (11), and an upper magnet (12) is fixedly connected to the surface of the baffle (11).

5. The high-temperature resistant limit switch housing according to claim 4, characterized in that: The second limiting post (14) is symmetrically distributed about the center of the heat dissipation cover (13).

6. The high-temperature resistant limit switch housing according to claim 5, characterized in that: A first spring (15) is fixedly connected to the surface of the heat dissipation cover (13), and the other end of the first spring (15) is fixedly connected to the housing (1).

7. The high-temperature resistant limit switch housing according to claim 6, characterized in that: The surface of the heat dissipation cover (13) is fixedly connected to a lower magnet (16), and the magnetic poles on the surface of the lower magnet (16) are opposite to the magnetic poles on the surface of the upper magnet (12).

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