Thermal resistor with shockproof protection structure

Abstract

The utility model discloses a thermal resistor with a shockproof protection structure, which belongs to the technical field of thermal resistors and comprises a thermal resistor, a junction box, a contact shockproof structure, a fixing plate and a shockproof structure, the thermal resistor is assembled at the output end of the junction box, and both the contact shockproof structure and the fixing plate are assembled on the outer surface of the thermal resistor. The shock-proof structure is elastically assembled on the lower surface of the fixing plate, the contact shock-proof structure is located below the shock-proof structure, the fixing plate and the shock-proof structure are designed, the shock-proof structure can elastically move in the vertical direction through elastic connection of the fixing plate and the shock-proof structure, shock in the vertical direction can be buffered, and the shock-proof effect is good. Meanwhile, damping springs and outer plates in four directions are arranged on the anti-vibration structure, vibration in the horizontal direction can be buffered, then anti-vibration buffering of the whole electric heating set in different directions is achieved, the influence of vibration on an internal conductor structure of the electric heating set is greatly reduced, the accuracy and stability of the electric heating set are improved, and the service life of the electric heating set is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal resistors, and in particular provides a thermal resistor with a shockproof protection structure. Background Art

[0002] Thermistors are widely used temperature detection devices in medium and low temperature areas. Their working principle is based on the property that the resistance value of a conductor or semiconductor changes with temperature, and they are used to measure temperature and its related parameters. In the application of thermal resistors, shock protection is crucial. First, in industrial production, many devices operate in a vibration environment. If sensors such as thermal resistors lack sufficient shock resistance, their measurement accuracy and service life will be significantly affected; secondly, when natural disasters such as earthquakes occur, shock protection can reduce the risk of equipment damage; in addition, in fields such as scientific research, aerospace, etc. that require extremely high precision, shock protection is a key factor in ensuring data accuracy and stability.

[0003] However, the current thermal resistors on the market have defects in shockproof performance. The internal conductor structure of some thermal resistors is relatively fragile, which can easily cause resistance deviation due to vibration, thereby increasing measurement errors. At the same time, the lead design of some thermal resistors is not scientific enough, which can easily cause additional resistance changes in a vibration environment, further damaging the measurement accuracy. Therefore, a thermal resistor with a shockproof protection structure is needed. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a thermal resistor with a shockproof protection structure.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a thermal resistor with a shockproof protection structure, comprising a thermal resistor, a junction box, a contact shockproof structure, a fixing plate and a shockproof structure, wherein the thermal resistor is mounted at the output end of the junction box, the contact shockproof structure and the fixing plate are both mounted on the outer surface of the thermal resistor, the shockproof structure is elastically mounted on the lower surface of the fixing plate, and the contact shockproof structure is located below the shockproof structure;

[0006] The shockproof structure includes a shockproof cylinder, a shock-absorbing spring and an outer plate. The shockproof cylinder is sleeved on the thermal resistor. The four outer plates are assembled on the outer surface of the shockproof cylinder through shock-absorbing springs. A support plate is fixedly installed on the outer circumferential surface of the shockproof cylinder, and the support plate passes through the outer plate. A limiting groove is provided on the outer surface of the outer plate. A limiting ring is fixedly installed on the outer surface of the support plate, and the limiting ring is located in the limiting groove.

[0007] Furthermore, the contact anti-seismic structure includes a box body, a contact plate and a disc spring, the contact plate is fixedly installed on the lower surface of the box body, a cylindrical cavity is opened on the lower surface of the box body, an upper pad is movably installed inside the cylindrical cavity, a lower pad is fixedly installed on the upper surface of the contact plate, and the disc spring is arranged between the upper pad and the lower pad, a rectangular groove is opened on the upper surface of the inner cavity of the cylindrical cavity, a pressure block is placed in the rectangular groove, an adjusting screw is installed on the upper end of the pressure block, and the adjusting screw passes through the box body through a threaded connection.

[0008] Furthermore, a mounting pad is arranged between the box body and the contact plate.

[0009] Furthermore, a protective pad is fixedly installed on the lower surface of the upper pad, an auxiliary pad is fixedly installed on the lower surface of the protective pad, and one end of the small diameter of the disc spring contacts the protective pad, the auxiliary pad is an annular structure, and the lower end of the inner surface of the auxiliary pad is an arc surface, and the arc surface contacts the outer surface of the disc spring.

[0010] Furthermore, the disc springs are composed of three overlapping structures.

[0011] Furthermore, annular grooves are provided on the upper and lower surfaces of the shockproof cylinder, one end of a buffer spring is fixedly mounted on the lower surface of the fixing plate, and the other end of the buffer spring is fixedly mounted in the annular groove on the upper side.

[0012] Furthermore, one end of a connecting spring is fixedly installed in the annular groove at the lower side, a buffer block is fixedly installed at the other end of the connecting spring, and the buffer block is sleeved on the thermal resistor.

[0013] Furthermore, both upper and lower ends of the outer plate are bent inwards, and the fixing plate and the buffer block are located on the inner side of the outer plate.

[0014] The beneficial effects of using the utility model are:

[0015] The utility model designs a fixing plate and a shockproof structure, and through the elastic connection between the fixing plate and the shockproof structure, the shockproof structure can perform elastic movement in the vertical direction, and can buffer the vibration in the vertical direction. At the same time, shock-absorbing springs and outer plates in four directions are arranged on the shockproof structure, which can buffer the vibration in the horizontal direction, thereby realizing shockproof buffering in different directions of the electric heating group as a whole, greatly reducing the influence of vibration on the internal conductor structure of the electric heating group, and improving the accuracy, stability and service life of the electric heating group.

[0016] The utility model also designs a contact anti-vibration structure at the installation position of the electric heating group, which plays a role of buffering and shock absorption through the internal disc spring, reduces the influence of equipment vibration on the electric heating group, and improves the accuracy and stability of the electric heating group.

[0017] The utility model forms triple shock protection through the cooperation of the fixing plate, the buffer spring, the shock-proof structure and the contact shock-proof structure, thereby greatly improving the shock-proof performance of the electric heating group.

[0018] The utility model designs the structure of the outer plate to shield the electric heating group that is mostly exposed outside, which not only plays a shock-proof and buffering role, but also can block objects such as stones in the external environment to avoid damage to the electric heating group, play a protective role, and improve the safety and service life of the electric heating group. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front sectional view of the utility model.

[0020] Figure 2 For this utility model Figure 1 Cross-sectional view along the AA direction.

[0021] Figure 3 For this utility model Figure 1 A partial enlarged view of part a.

[0022] The reference numerals in the accompanying drawings include: 1. thermal resistor, 2. junction box, 3. contact anti-seismic structure, 31. box body, 311. cylindrical cavity, 312. upper pad, 313. protective pad, 314. auxiliary pad, 315. rectangular groove, 316. pressure block, 317. adjusting screw, 32. contact plate, 321. lower pad, 33. disc spring, 34. mounting pad, 4. fixing plate, 41. buffer spring, 5. shockproof structure, 51. shockproof cylinder, 52. shock-absorbing spring, 53. outer plate, 54. support plate, 55. limiting ring, 56. connecting spring, 57. buffer block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figures 1 to 3 A thermal resistor with a shockproof protection structure includes a thermal resistor 1, a junction box 2, a contact shockproof structure 3, a fixing plate 4 and a shockproof structure 5. The thermal resistor 1 is assembled at the output end of the junction box 2, the contact shockproof structure 3 and the fixing plate 4 are both assembled on the outer surface of the thermal resistor 1, the shockproof structure 5 is elastically assembled on the lower surface of the fixing plate 4, and the contact shockproof structure 3 is located below the shockproof structure 5.

[0025] A knob is installed on the upper side of the contact anti-seismic structure 3, and a threaded structure is installed on the lower side, which is used to connect with the equipment thread to realize the installation of this electric heating group. At the same time, the contact anti-seismic structure 3 is used to reduce the impact of equipment vibration on the electric heating group, playing a role in anti-seismic protection.

[0026] The fixing plate 4 and the shockproof structure 5 are elastically connected, and can buffer the vibration in the vertical direction.

[0027] like Figure 1 and Figure 2 As shown, the shockproof structure 5 includes a shockproof cylinder 51, a shock-absorbing spring 52 and an outer plate 53. The shockproof cylinder 51 is sleeved on the thermal resistor 1. Four outer plates 53 are assembled on the outer surface of the shockproof cylinder 51 through the shock-absorbing springs 52. A support plate 54 is fixedly installed on the outer peripheral surface of the shockproof cylinder 51, and the support plate 54 passes through the outer plate 53. A limiting groove is provided on the outer surface of the outer plate 53. A limiting ring 55 is fixedly installed on the outer surface of the support plate 54, and the limiting ring 55 is located in the limiting groove.

[0028] The structure of four groups of shock-absorbing springs 52 and the outer plate 53 can buffer horizontal vibrations and improve the shock resistance of the electric heating group. At the same time, the design of the outer plate 53 can protect the internal electric heating group and block stones and other materials on the outside to prevent stones and other materials from damaging the electric heating group.

[0029] The support plate 54 is made of elastic metal, which can bend and reset itself, and can better dissipate vibration energy. At the same time, after the outer plate 53 blocks stones and other materials, it can reset it and reduce the impact of vibration caused by collision on the electric heating group, further improving the shock-proof buffering and protection capabilities of the shock-proof structure 5.

[0030] A contact anti-seismic structure 3, a fixing plate 4 and an anti-seismic structure 5 are provided to form triple anti-seismic, which greatly improves the anti-seismic performance of the electric heating unit and improves the accuracy, stability and service life of the electric heating unit.

[0031] Specifically, if Figure 1 and Figure 3 As shown, the contact anti-seismic structure 3 includes a box body 31, a contact plate 32 and a disc spring 33. The contact plate 32 is fixedly installed on the lower surface of the box body 31. A cylindrical cavity 311 is opened on the lower surface of the box body 31. An upper pad 312 is movably installed inside the cylindrical cavity 311. A lower pad 321 is fixedly installed on the upper surface of the contact plate 32, and the disc spring 33 is arranged between the upper pad 312 and the lower pad 321. A rectangular groove 315 is opened on the upper surface of the inner cavity of the cylindrical cavity 311. A pressure block 316 is placed in the rectangular groove 315. An adjusting screw 317 is installed on the upper end of the pressure block 316, and the adjusting screw 317 passes through the box body 31 through a threaded connection.

[0032] A disc spring 33 is arranged in the box body 31, which can discharge the vibration energy when the vibration generated by the equipment is transmitted to the electric heating group, play a role of anti-vibration buffer, and protect the electric heating group.

[0033] The position of the upper pad 312 can be adjusted by adjusting the screw 317 and the pressure block 316, thereby adjusting the tightness of the disc spring 33.

[0034] Specifically, a mounting pad 34 is installed between the box body 31 and the contact plate 32 .

[0035] The mounting pad 34 is made of elastic metal and has a certain shock-resistant buffering capability.

[0036] Specifically, if Figure 3 As shown, a protective pad 313 is fixedly installed on the lower surface of the upper pad 312, an auxiliary pad 314 is fixedly installed on the lower surface of the protective pad 313, and one end of the small diameter of the disc spring 33 contacts the protective pad 313, the auxiliary pad 314 is an annular structure, and the lower end of the inner surface of the auxiliary pad 314 is an arc surface, and the arc surface contacts the outer surface of the disc spring 33.

[0037] Since the small diameter end of the disc spring 33 is located on the side of the upper pad 312, a protective pad 313 and an auxiliary pad 314 are provided to protect the small diameter end of the disc spring 33.

[0038] Specifically, if Figure 3 As shown, the disc spring 33 is a three-group overlapping structure. This installation method makes the disc spring have better elasticity and plays a better anti-vibration and buffering role.

[0039] Specifically, if Figure 1 As shown, annular grooves are provided on the upper and lower surfaces of the shockproof cylinder 51 , one end of a buffer spring 41 is fixedly mounted on the lower surface of the fixing plate 4 , and the other end of the buffer spring 41 is fixedly mounted in the upper annular groove.

[0040] Specifically, if Figure 1 As shown, one end of a connecting spring 56 is fixedly installed in the lower annular groove, and a buffer block 57 is fixedly installed on the other end of the connecting spring 56, and the buffer block 57 is sleeved on the thermal resistor 1.

[0041] The cooperation of the buffer spring 41 , the connecting spring 56 and the buffer block 57 enables the shockproof structure 5 to have the shockproof buffering capability for vertical vibration, thereby protecting the electric heating group.

[0042] Specifically, if Figure 1 As shown, the upper and lower ends of the outer plate 53 are bent inward, and the fixing plate 4 and the buffer block 57 are located on the inner side of the outer plate 53 .

[0043] The design of the outer plate 53 structure enables it to block stones and other materials on the upper and lower sides, protecting the electric heating group. At the same time, it can also protect the inner fixing plate 4, buffer spring 41, shockproof cylinder 51, connecting spring 56, and buffer block 57, thereby increasing the strength and service life of the shockproof structure 5.

[0044] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A thermal resistor with a shockproof protection structure, characterized in that: It includes a thermal resistor, a junction box, a contact anti-seismic structure, a fixing plate and an anti-seismic structure, wherein the thermal resistor is mounted on the output end of the junction box, the contact anti-seismic structure and the fixing plate are both mounted on the outer surface of the thermal resistor, the anti-seismic structure is elastically mounted on the lower surface of the fixing plate, and the contact anti-seismic structure is located below the anti-seismic structure; The shockproof structure includes a shockproof cylinder, a shock-absorbing spring and an outer plate. The shockproof cylinder is sleeved on the thermal resistor. The four outer plates are assembled on the outer surface of the shockproof cylinder through shock-absorbing springs. A support plate is fixedly installed on the outer circumferential surface of the shockproof cylinder, and the support plate passes through the outer plate. A limiting groove is provided on the outer surface of the outer plate. A limiting ring is fixedly installed on the outer surface of the support plate, and the limiting ring is located in the limiting groove.

2. A thermal resistor with a shockproof protection structure according to claim 1, characterized in that: The contact anti-seismic structure includes a box body, a contact plate and a disc spring. The contact plate is fixedly installed on the lower surface of the box body. A cylindrical cavity is opened on the lower surface of the box body. An upper pad is movably installed inside the cylindrical cavity. A lower pad is fixedly installed on the upper surface of the contact plate, and the disc spring is arranged between the upper pad and the lower pad. A rectangular groove is opened on the upper surface of the inner cavity of the cylindrical cavity. A pressure block is placed in the rectangular groove. An adjusting screw is installed on the upper end of the pressure block, and the adjusting screw passes through the box body through a threaded connection.

3. A thermal resistor with a shockproof protection structure according to claim 2, characterized in that: A mounting pad is arranged between the box body and the contact plate.

4. A thermal resistor with a shockproof protection structure according to claim 2, characterized in that: A protective pad is fixedly installed on the lower surface of the upper pad, an auxiliary pad is fixedly installed on the lower surface of the protective pad, and one end of the small diameter of the disc spring contacts the protective pad. The auxiliary pad is an annular structure, and the lower end of the inner surface of the auxiliary pad is an arc surface, and the arc surface contacts the outer surface of the disc spring.

5. A thermal resistor with a shockproof protection structure according to claim 2, characterized in that: The disc springs are composed of three groups of overlapping structures.

6. A thermal resistor with a shockproof protection structure according to claim 1, characterized in that: The upper and lower surfaces of the shockproof cylinder are both provided with annular grooves, one end of a buffer spring is fixedly mounted on the lower surface of the fixing plate, and the other end of the buffer spring is fixedly mounted in the annular groove on the upper side.

7. A thermal resistor with a shockproof protection structure according to claim 6, characterized in that: One end of a connecting spring is fixedly installed in the annular groove at the lower side, and a buffer block is fixedly installed at the other end of the connecting spring, and the buffer block is sleeved on the thermal resistor.

8. A thermal resistor with a shockproof protection structure according to claim 7, characterized in that: The upper and lower ends of the outer plate are bent inwards, and the fixing plate and the buffer block are located on the inner side of the outer plate.

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