CN219957639U - Electric control board test fixture - Google Patents

Abstract

The utility model discloses an electric control board testing tool which comprises a shell, a clamping module and a rotating module, wherein a first accommodating cavity is formed in the shell, a first opening part is formed on the shell, the first opening part is communicated with the first accommodating cavity, and the first accommodating cavity is used for accommodating an electric control board; the clamping module is used for clamping the electric control plate, and the clamping range of the clamping module can be enlarged or reduced; the rotation module drives the clamping module to rotate relative to the first opening part. The utility model provides an electric control board testing tool which can assist in the convenient and fast implementation of the testing process of an electric control board and provides an independent testing space.

Description

Electric control board test fixture

Technical Field

The utility model belongs to the technical field of electronic device testing, and particularly relates to an electric control board testing tool.

Background

In the design development process of the electric control board, the electric control board is often required to be tested, and the test improvement work occupies about one third of the time of the whole electric control board design flow. When the electric control board is tested, the operation of welding auxiliary test metal wires, external cables and the like is carried out at the welding point of the test position because of the copper-clad circuit of the cutting part, but the device on one side of the electric control board plug connector is uneven, and the plug connector or the auxiliary component is easy to bend by mistake to cause short circuit when cutting and welding. Meanwhile, because the welding levels of testers are different, the welding quality of devices on the electric control board is different; and in the process of primary power-up and subsequent test of the electric control board, the electric control board device is subjected to error electric shock, and part of devices are subjected to explosion and other risks.

At present, when testing the electric control board, the electric control board is often directly placed on a test desktop, a transparent box is temporarily adopted for simple covering as protection, and the temperature influence of the air flowing electric control board in the external space is large.

Therefore, the electric control board testing tool is developed, the test process of the electric control board can be conveniently and rapidly carried out, and an independent test space is provided, so that the technical problem to be solved is urgent.

Disclosure of Invention

The utility model aims to provide an electric control board testing tool which can assist in the convenient and fast implementation of the testing process of an electric control board and provide an independent testing space.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

the utility model provides an automatically controlled board test fixture, includes casing, centre gripping module and rotation module, be formed with first accommodation cavity in the casing, be formed with first open portion on the casing, first open portion with first accommodation cavity intercommunication, first accommodation cavity is used for holding the automatically controlled board; the clamping module is used for clamping the electric control plate, and the clamping range of the clamping module can be enlarged or reduced; the rotation module drives the clamping module to rotate relative to the first opening part.

In some embodiments of the present utility model, the clamping module includes two oppositely disposed clamping assemblies, the two clamping assemblies are used for clamping the electric control board, the two clamping assemblies can be relatively far away or close, and the rotating module can drive the two clamping assemblies to rotate relative to the first opening portion.

In some embodiments of the utility model, the clamping module further comprises a telescopic assembly comprising a first drive motor, a first gear shaft, two first racks, two first sliders, two first slide rails, two first guides, and two second guide slots; two first sliding rails are respectively arranged on the two first racks; two first sliding blocks are respectively arranged on the two clamping assemblies; a first sliding groove is formed below the first sliding block; the first driving motor drives the first gear shaft to drive the two first racks to move along the first guide parts respectively, the first sliding chute slides relative to the first sliding rail, and the first sliding block moves along the second guide groove; the two clamping assemblies are relatively far away from or close to each other through the movement of the first sliding rail relative to the first sliding groove.

In some embodiments of the present utility model, the first guide portion is disposed vertically with respect to the first opening portion, the first sliding groove is disposed obliquely with respect to a moving direction of the first rack, and the second guide groove is disposed to extend in a vertical direction with respect to the first guide portion.

In some embodiments of the present utility model, the clamping module further includes a telescopic assembly mounting portion, the telescopic assembly mounting portion includes a first supporting portion and a protecting portion, the first supporting portion is disposed on a lower side wall of the first accommodating cavity, the first gear shaft is rotatably connected with the first supporting portion, two first guiding portions are disposed on the first supporting portion, two first racks can move along the first guiding portions, the protecting portion is sleeved outside the first gear shaft and the two first racks, the second guiding grooves are respectively opened on two sides of the protecting portion, and the first slider slides relative to the second guiding grooves.

In some embodiments of the present utility model, the rotation module includes two rotation assemblies and a second driving motor, and the two rotation assemblies respectively drive the two clamping assemblies to rotate; the clamping assembly comprises a clamping part, and the clamping part is used for clamping the electric control plate; the rotating assembly comprises a second gear shaft and a third gear shaft, the second driving motor drives the second gear shaft to drive the third gear shaft to rotate, the clamping part is connected with the third gear shaft and rotates along with the third gear shaft, and the clamping part, the second gear shaft and the third gear shaft are all arranged in the first accommodating cavity.

In some embodiments of the present utility model, the rotating assembly further includes a second supporting portion, one end of the third gear shaft is rotatably connected to the second supporting portion, the other end of the third gear shaft is connected to the clamping portion, one end of the second gear shaft is rotatably connected to the second supporting portion, and the other end of the second gear shaft is rotatably connected to an inner wall of the first accommodating cavity.

In some embodiments of the present utility model, a second accommodating cavity is further formed in the housing, and the first driving motor and the second driving motor are both disposed in the second accommodating cavity.

In some embodiments of the present utility model, the telescopic assembly further includes a first synchronous belt transmission assembly, and the first driving motor drives the first gear shaft to rotate through the first synchronous belt transmission assembly; the rotating module further comprises a second synchronous belt transmission assembly, and the second driving motor drives the second gear shaft to rotate through the second synchronous belt transmission assembly.

In some embodiments of the utility model, a fan and a temperature sensor are also included; a third accommodating cavity is formed in the shell, the temperature sensor is arranged in the third accommodating cavity, a second opening part is formed in the shell, and the second opening part is communicated with the third accommodating cavity; the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are communicated; fans are arranged in the first accommodating cavity and the second accommodating cavity.

Compared with the prior art, the utility model has the advantages and positive effects that:

the first accommodating cavity is formed in the shell, and the first opening part communicated with the first accommodating cavity is formed in the shell, so that the electric control board can be tested in the first accommodating cavity, an operator can operate through the first opening part, an independent space is provided for testing the electric control board, safety protection is realized, and meanwhile, the influence of the external environment on the testing of the electric control board is avoided; the clamping module is arranged to clamp the electric control plate, and the clamping range of the clamping module can be enlarged or reduced, so that the electric control plate is suitable for electric control plates with different sizes; through setting up rotation module, realize the rotation of centre gripping module relative first open portion to the operating personnel of being convenient for is to the operation of each position of automatically controlled board.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of an electric control board testing tool according to the present utility model;

FIG. 2 is a schematic diagram of another overall structure of an embodiment of an electric control board testing tool according to the present utility model;

FIG. 3 is a front view of an embodiment of an electronic control board test fixture according to the present utility model;

FIG. 4 is a schematic diagram of another overall structure of an embodiment of an electric control board testing tool according to the present utility model;

FIG. 5 is a front view of the internal structure of an embodiment of an electrical panel test fixture according to the present utility model;

FIG. 6 is a schematic diagram illustrating an internal structure of an embodiment of an electric control board testing tool according to the present utility model;

fig. 7 is a schematic diagram of the overall structure of a clamping module and a rotating module of an embodiment of an electric control board testing tool according to the present utility model;

in the drawing the view of the figure,

100, a housing;

110, a first receiving cavity;

120, a first opening portion;

130, a second receiving cavity;

140, a third receiving cavity;

210, a clamping assembly;

211, clamping part;

221, a first drive motor;

222, a first gear shaft;

223, a first rack;

224, a first slider;

225, a first slide rail;

226, a first guide;

227, a first chute;

228, a second guide slot;

230, a telescoping assembly mounting portion;

231, a first support;

232, a guard;

241, a first drive shaft;

242, a fifth synchronous pulley;

243, a sixth synchronous pulley;

244, a seventh timing pulley;

245, an eighth synchronous pulley;

246, a ninth timing pulley;

247, tenth synchronous pulley;

311, a second gear shaft;

312, a third gear shaft;

313, a second support;

320, a second drive motor;

331, a second drive shaft;

332, a first synchronous pulley;

333, a second synchronous pulley;

334, a fourth gear shaft;

335, a fifth gear;

336, a third synchronous pulley;

337, a fourth synchronous pulley;

410, fans.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

In the embodiment, the utility model relates to an electric control board test fixture, which is used for conveniently and rapidly testing the electric control board in the process of designing and developing the electric control board,

therefore, the electric control board testing device should be provided with the operations of clamping the electric control board and rotating the electric control board to facilitate welding and the like, and in order to be capable of adapting to the clamping requirements of the electric control boards with various sizes, the clamping range of the electric control board testing tool is adjustable.

In this embodiment, as shown in fig. 1, 2, 3, 4, 5 and 6, the electric control board testing tool includes a housing 100, a clamping module and a rotating module. The clamping module is used for clamping the electric control plate. The rotation module is used for driving the clamping module to rotate. The housing 100 is used to house a clamping module and a rotation module.

In the present embodiment, a first accommodating chamber 110 is formed in the housing 100, and a first opening 120 is formed in the housing 100. The first opening portion 120 communicates with the first accommodating chamber 110. The first accommodating chamber 110 is used for accommodating an electric control board.

In order to adapt to electric control boards with different sizes, the clamping range of the clamping module can be enlarged or reduced.

The rotation module drives the clamping module to rotate relative to the first opening portion 120.

The specific structure of the clamping module is not limited, and in this embodiment, as shown in fig. 7, the clamping module includes two clamping assemblies 210 disposed opposite to each other.

Two clamping assemblies 210 are arranged at intervals and are used for clamping at two sides of the electric control plate.

The clamping ranges of the two clamping assemblies 210 are adjusted by the relative distance or proximity of the two clamping assemblies 210.

Specifically, the clamping assembly 210 includes a clamping portion 211. The clamping portion 211 is used for clamping the electric control board.

Since the electric control board is clamped between the two clamping assemblies 210, when the electric control board is welded or the like, an operator needs to operate the electric control board through the first opening portion 120, and in order to facilitate the operation of the operator, the rotation module can drive the two clamping assemblies 210 to rotate relative to the first opening portion 120.

In this embodiment, the rotation module includes two rotation assemblies and a second driving motor 320. The second driving motor 320 drives the two rotating assemblies to rotate.

The rotating assembly includes a second gear shaft 311 and a third gear shaft 312. The second driving motor 320 drives the second gear shaft 311 to rotate, and the second gear shaft 311 drives the third gear shaft 312 to rotate.

The clamping portion 211 is coaxially connected to the third gear shaft 312.

The second gear shaft 311 drives the third gear shaft 312 to rotate, and the third gear shaft 312 drives the clamping portion 211 to rotate.

Because the rotating components at two sides are driven by the second driving motor 320, the clamping parts 211 at two sides can synchronously rotate, and the rotation directions of the second gear shaft 311 and the third gear shaft 312 are reasonably set, so that the clamping parts 211 at two sides can drive the electric control plate to rotate.

The second gear shaft 311 and the third gear shaft 312 are disposed in parallel with the first opening portion 120 in the axial direction, and the clamping portion 211 can drive the electric control board to rotate relative to the first opening portion 120.

In this embodiment, the rotating assembly further includes a second support 313. The second support 313 is vertically disposed.

Specifically, one end of the second gear shaft 311 is rotatably connected to the inner wall of the first receiving chamber 110, and the other end of the second gear shaft 311 is rotatably connected to the second supporting portion 313.

One end of the third gear shaft 312 is rotatably connected to the second supporting portion 313, and the other end of the third gear shaft 312 is connected to the clamping portion 211.

In order to achieve that the clamping range of the clamping module can be enlarged or reduced, in this embodiment, the clamping module further comprises a telescopic assembly. The telescopic assembly comprises a first driving motor 221, a first gear shaft 222, two first racks 223, two first sliding blocks 224, two first sliding rails 225, two first guiding parts 226 and two second guiding grooves 228.

The first driving motor 221 drives the first gear shaft 222 to rotate.

The two first racks 223 are engaged with the first gear shaft 222.

Specifically, the axis of the first gear shaft 222 is disposed vertically. Two first racks 223 are horizontally disposed at both sides of the first gear shaft 222 to be engaged therewith.

Specifically, the first rack 223 is disposed in a direction perpendicular to the first opening portion 120.

Two first sliders 224 are disposed under the two clamping assemblies 210, respectively. The two first slide rails 225 are respectively disposed on the two first racks 223.

A first sliding groove 227 is formed below the first sliding block 224, and the first sliding groove 227 slides relatively to the first sliding rail 225.

The second guide groove 228 is used to define a moving track of the first slider 224.

The first guide 226 serves to define a moving direction of the first rack 223.

The first rack 223 is movable along the first guide 226.

The first guide portion 226 is disposed perpendicular to the second guide groove 228.

Specifically, the first guide portion 226 is disposed perpendicular to the first opening portion 120.

Specifically, the first sliding groove 227 is disposed at a certain angle with the first sliding rail 225 and the first rack 223. During movement of the first runner 227 relative to the first slide rail 225, a relative approach or separation of the two clamp assemblies 210 is achieved.

In this embodiment, the clamping module further includes a telescopic assembly mounting portion 230, and the telescopic assembly mounting portion 230 includes a first supporting portion 231 and a protecting portion 232. The first supporting part 231 is disposed on an inner wall of the first receiving cavity 110, and in particular, the first supporting part 231 is disposed on a lower sidewall of the first receiving cavity 110.

The first gear shaft 222 is rotatably connected to the first supporting portion 231.

Two of the first guide portions 226 are provided on the first supporting portion 231.

The protecting part 232 is disposed on the first supporting part 231 and sleeved outside the first gear shaft 222 and the two first racks 223.

The second guide grooves 228 are respectively opened at both sides of the first supporting portion 231. The first slider 224 moves relative to the second guide groove 228.

In this embodiment, the housing 100 further has a second accommodating cavity 130 formed therein, and the first driving motor 221 and the second driving motor 320 are both mounted in the second accommodating cavity 130.

Specifically, in order to facilitate the operation of the electric control board by the test person, the first accommodating chamber 110 is disposed above the second accommodating chamber 130.

To achieve transmission between the first drive motor 221 and the first gear shaft 222, the telescoping assembly further includes a first timing belt transmission assembly.

The first timing belt drive assembly includes a first drive shaft 241, a fifth timing pulley 242, a sixth timing pulley 243, a seventh timing pulley 244, an eighth timing pulley 245, a ninth timing pulley 246, a third timing belt, a fourth timing belt, and a fifth timing belt.

The fifth and sixth timing pulleys 242 and 243 are provided at both ends of the first transmission shaft 241, respectively, and the seventh timing pulley 244 and the eighth timing pulley 245 are rotatably provided coaxially with each other on the housing 100. A ninth timing pulley 246 is provided on the first gear shaft 222. The output shaft of the first drive motor 221 is provided with a tenth timing pulley 247, the tenth timing pulley 247 is connected to the fifth timing pulley 242 via a third timing belt, the sixth timing pulley 243 is connected to the seventh timing pulley 244 via a fourth timing belt, and the eighth timing pulley 245 is connected to the ninth timing pulley 246 via a fifth timing belt.

To achieve transmission between the second drive motor 320 and the second gear shaft 311, the rotation module further includes a second timing belt transmission assembly.

The second timing belt transmission assembly includes a second transmission shaft 331, a first timing belt pulley 332, two second timing belt pulleys 333, two fourth gear shafts 334, two fifth gears 335, two third timing belt pulleys 336, a first timing belt and a second timing belt.

The first synchronous pulley 332 is disposed in the middle of the second transmission shaft 331, two second synchronous pulleys 333 are disposed at two ends of the second transmission shaft 331, and the third synchronous pulley 336 is disposed on the fourth gear shaft 334. The fifth gear 335 is provided on the second gear shaft 311. The fourth gear shaft 334 is meshed with the fifth gear 335. The fourth gear shaft 334 is rotatably connected with the housing 100. The output shaft of the second driving motor 320 is provided with a fourth synchronous pulley 337, the first synchronous pulley 332 is connected to the fourth synchronous pulley 337 via a first synchronous belt, and the second synchronous pulley 333 is connected to the third synchronous pulley 336 via a second synchronous belt.

Specifically, if the second synchronous pulley 333 is far from the third synchronous pulley 336, a synchronous pulley may be added between them for transmission.

The electronic control board generates heat during the test, resulting in a constant increase in temperature within the first receiving cavity 110 and thus within the housing 100.

A third receiving cavity 140 is also formed in the housing 100. The first receiving cavity 110, the second receiving cavity 130 are in communication with the third receiving cavity 140.

Accordingly, a fan 410 is disposed in the first receiving cavity 140. In order to ensure heat dissipation of the first driving motor 221 and the second driving motor 320, a fan is also provided in the drop accommodating chamber 130.

A temperature sensor is disposed in the third accommodating chamber 140, and the temperature sensor is used for detecting the temperature in the housing 100, and controlling the start and stop of the fan when the set temperature is reached.

In this embodiment, the outer side wall of the housing 100 is further provided with a temperature display device for displaying the temperature of the temperature sensor.

A timer is also provided on the outer side wall of the housing 100.

The first accommodating cavity 110 is formed in the shell 100, and the first opening part 120 communicated with the first accommodating cavity 110 is formed in the shell 100, so that the electric control board can be tested in the first accommodating cavity 110, an operator can operate through the first opening part 120, an independent space is provided for testing the electric control board, safety protection is realized, and meanwhile, the influence of the external environment on the testing of the electric control board is avoided; the clamping module is arranged to clamp the electric control plate, and the clamping range of the clamping module can be enlarged or reduced, so that the electric control plate is suitable for electric control plates with different sizes; by arranging the rotation module, the clamping module rotates relative to the first opening part 120, so that the operation of operators on each part of the electric control plate is facilitated.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative embodiments of the present utility model, and the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be covered by the present utility model, and the scope of the present utility model shall be defined by the appended claims.

Claims (10)

1. An automatically controlled board test fixture, its characterized in that includes:

a housing in which a first accommodation chamber is formed, a first opening portion being formed on the housing, the first opening portion being in communication with the first accommodation chamber, the first accommodation chamber being for accommodating an electronic control board;

the clamping module is used for clamping the electric control plate, and the clamping range of the clamping module can be enlarged or reduced;

and the rotating module drives the clamping module to rotate relative to the first opening part.

2. The electric control board test fixture according to claim 1, wherein,

the clamping module comprises two clamping assemblies which are oppositely arranged, the two clamping assemblies are used for clamping the electric control plate, the two clamping assemblies can be relatively far away from or close to each other, and the rotating module can drive the two clamping assemblies to rotate relative to the first opening part.

3. The electric control board testing tool according to claim 2, wherein the clamping module further comprises a telescopic assembly, the telescopic assembly comprises a first driving motor, a first gear shaft, two first racks, two first sliding blocks, two first sliding rails, two first guide parts and two second guide grooves;

two first sliding rails are respectively arranged on the two first racks;

two first sliding blocks are respectively arranged on the two clamping assemblies;

a first sliding groove is formed below the first sliding block;

the first driving motor drives the first gear shaft to drive the two first racks to move along the first guide parts respectively, the first sliding chute slides relative to the first sliding rail, and the first sliding block moves along the second guide groove;

the two clamping assemblies are relatively far away from or close to each other through the movement of the first sliding rail relative to the first sliding groove.

4. The electric control plate testing tool according to claim 3, wherein the first guide portion is vertically disposed relative to the first opening portion, the first sliding groove is obliquely disposed relative to a moving direction of the first rack, and the second guide groove is disposed to extend along a direction perpendicular to the first guide portion.

5. The electric control plate testing tool according to claim 4, wherein the clamping module further comprises a telescopic assembly mounting part, the telescopic assembly mounting part comprises a first supporting part and a protection part, the first supporting part is arranged on the lower side wall of the first accommodating cavity, the first gear shaft is rotatably connected with the first supporting part, the two first guiding parts are arranged on the first supporting part, the two first racks can move along the first guiding parts, the protection part is sleeved outside the first gear shaft and the two first racks, the second guiding grooves are respectively formed in two sides of the protection part, and the first sliding block slides relative to the second guiding grooves.

6. The electric control board test fixture of claim 3, wherein the rotating module comprises two rotating assemblies and a second driving motor, and the two rotating assemblies respectively drive the two clamping assemblies to rotate;

the clamping assembly comprises a clamping part, and the clamping part is used for clamping the electric control plate;

the rotating assembly comprises a second gear shaft and a third gear shaft, the second driving motor drives the second gear shaft to drive the third gear shaft to rotate, the clamping part is connected with the third gear shaft and rotates along with the third gear shaft, and the clamping part, the second gear shaft and the third gear shaft are all arranged in the first accommodating cavity.

7. The electric control plate testing tool according to claim 6, wherein the rotating assembly further comprises a second supporting portion, one end of the third gear shaft is rotatably connected with the second supporting portion, the other end of the third gear shaft is connected with the clamping portion, one end of the second gear shaft is rotatably connected with the second supporting portion, and the other end of the second gear shaft is rotatably connected with the inner wall of the first accommodating cavity.

8. The electric control board testing tool of claim 6, wherein a second accommodating cavity is further formed in the housing, and the first driving motor and the second driving motor are both arranged in the second accommodating cavity.

9. The electric control board test fixture according to claim 8, wherein,

the telescopic assembly further comprises a first synchronous belt transmission assembly, and the first driving motor drives the first gear shaft to rotate through the first synchronous belt transmission assembly;

the rotating module further comprises a second synchronous belt transmission assembly, and the second driving motor drives the second gear shaft to rotate through the second synchronous belt transmission assembly.

10. The electric control board test fixture according to claim 1, wherein,

the device also comprises a fan and a temperature sensor;

a third accommodating cavity is formed in the shell, the temperature sensor is arranged in the third accommodating cavity, a second opening part is formed in the shell, and the second opening part is communicated with the third accommodating cavity;

the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are communicated;

fans are arranged in the first accommodating cavity and the second accommodating cavity.