A clamping tool for three-temperature test of communication module

Abstract

The utility model discloses a kind of clamping tool for three temperature test of communication module, belong to communication module test technical field, the clamping tool includes base, with the cavity of placement;Top cover, one end is hinged in the one end of base;Heat dissipation part, installation is in the side of top cover close to base;Self-locking assembly, including the elastic lock pin being set on top cover, and the lock hole being set on base;External member, installation is on base;Self-locking assembly and base effect realize locking;And self-locking assembly is under the action of external force to remove locking. Therefore, by the setting of self-locking assembly, it is convenient to clamp and take out communication module, so that the clamping tool for three temperature test of communication module provided by the utility model is more convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of communication module testing technology, specifically relating to a clamping fixture for three-temperature testing of communication modules. Background Technology

[0002] Communication modules are a crucial component of modern communications. A communication module is a device that integrates a communication interface, modem, radio frequency circuitry, and control logic to enable wireless or wired data transmission and communication between devices. Communication modules can include Bluetooth, Wi-Fi, NFC, and LoRa modules, each supporting different communication protocols and frequency bands. The communication module exchanges data with the main controller or central processing unit through the communication interface, receiving and sending data, and using radio frequency circuitry to convert digital signals into radio waves for transmission. The modem is responsible for signal encoding and decoding, ensuring accurate data transmission. The control logic manages the various functions and parameter settings of the communication module.

[0003] The three-temperature test (high temperature, normal temperature, and low temperature) of the communication module is the core of its environmental reliability test. It aims to ensure that the module can work stably and reliably in various harsh climatic environments, from the equator to the poles and from summer to winter. It is a key guarantee for product quality and durability.

[0004] However, the clamping fixtures in the existing three-temperature testing device for communication modules are inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned shortcomings in the prior art by providing a clamping fixture for three-temperature testing of communication modules, thereby solving the technical problem that the clamping fixtures in the existing three-temperature testing devices for communication modules are inconvenient to use.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A clamping fixture for three-temperature testing of a communication module, comprising: The base has a cavity for placement; The top cover is hinged at one end to one end of the base; A heat sink is installed on the side of the top cover near the base; The self-locking component interacts with the base to achieve locking; and the self-locking component is released under the action of external force. An external connector is mounted on the base and is used to connect the base to an external object.

[0007] With the above structure, when using the clamping fixture for three-temperature testing of the communication module provided by this utility model, the module is first installed on the test plate in the temperature chamber via an external connector. Then, the communication module to be tested is placed in the placement cavity, and the communication module is electrically connected to the test plate. Next, the top cover, hinged to the base, is rotated so that it rests on the base. When the top cover rotates to be parallel to the base, the self-locking component engages with the base, thereby locking the top cover and base, thus fixing the communication module to be tested. Simultaneously, the heat sink installed on the top cover is in contact with the communication module to be tested during the testing process. By incorporating heat dissipation components, the heat dissipation of the communication module under test is enhanced, reducing the likelihood that the module's own heat generation during testing will prevent accurate measurement of the impact of high external temperatures. This improves the fairness and accuracy of the test. After testing, the module can be easily removed by applying external force to the self-locking assembly. Therefore, the self-locking assembly facilitates clamping and removing the communication module, making the clamping fixture for three-temperature testing of the communication module provided by this invention more user-friendly and practical.

[0008] Furthermore, it also includes: The first hinge seat has a first through hole on its side wall. There are two first hinge seats. Both first hinge seats are installed on the side of the base near the top cover, and the two first hinge seats are spaced apart along a first direction. The second hinge seat has a second through hole on its side wall. There are two second hinge seats. Both second hinge seats are installed on the side of the top cover near the base. The two second hinge seats are spaced apart along the first direction. The two first through holes and the two second through holes are coaxially arranged. The hinge shaft is rotatably mounted in the two first through holes and the two second through holes.

[0009] Furthermore, the two first hinge seats are located between the two second hinge seats, and the first hinge seats on the same side are in contact with the second hinge seats. The inner wall of any one of the two second through holes is provided with an internal thread, and the outer wall of the hinge shaft is provided with an external thread adapted to the internal thread. The hinge shaft is screwed onto the second hinge seat.

[0010] Furthermore, the self-locking component includes an elastic locking pin disposed on the top cover and a locking hole disposed on the base, and the self-locking component has a locked state and an unlocked state; In the locked state, when the top cover is rotated to be parallel to the base and located directly above the base, the elastic locking pin is inserted into the lock hole under its own elastic force, and the self-locking component is in the locked state. In the unlocked state, applying external force to overcome the elastic force can cause the elastic locking pin to exit the lock hole, and the self-locking component is in the unlocked state.

[0011] Furthermore, the resilient locking pin includes: The rotating shaft has a mounting groove on the side of the top cover away from the base, and the mounting groove passes through the end of the top cover away from the second hinge seat. Mounting holes adapted to the rotating shaft are opened on opposite sides of the mounting groove, and the axes of the two mounting holes are parallel to each other with the first direction. The two ends of the rotating shaft are respectively rotatably installed in the two mounting holes. The mounting plate has a third through hole at one end that is adapted to the rotating shaft. The rotating shaft is rotatably mounted in the third through hole, and the other end of the mounting plate extends out of the mounting groove. The elastic element has a placement groove at the bottom of the mounting groove. One end of the elastic element is fixedly installed in the placement groove, and the other end of the elastic element extends out of the placement groove and is connected to the side of the mounting plate near the placement groove. The mounting groove has a clearance hole at the bottom, which extends through the bottom of the mounting groove. One end of the latch is mounted on the mounting plate near the base, and the latch is located inside the clearance hole.

[0012] Furthermore, the latch includes: The connecting block is mounted on the mounting plate at one end; The abutment block has one end installed on the side of the connecting block near the second hinge seat, and the other end of the abutment block extends in the direction of approaching the second hinge seat.

[0013] Furthermore, the side of the abutment block furthest from the top cover and the side closest to the top cover have an included angle α, wherein the included angle α is in the range of 30°≤α≤60°. Furthermore, the lock hole is located at the end of the base away from the first hinge seat, and the lock hole is located on the side of the base away from the top cover. Furthermore, the side of the base near the top cover has an included angle β with the top wall of the lock hole, and the included angle β is in the range of 30°≤β≤60°. Furthermore, it also includes a thermally conductive pad installed at the end of the heat sink away from the top cover.

[0014] The clamping fixture for three-temperature testing of the communication module provided by this utility model has the following beneficial effects: 1. The self-locking component makes it easier to secure and remove the communication module under test; 2. By designing heat dissipation components, the communication module is less likely to overheat during testing, which could lead to inaccurate measurement of the effects of high external temperatures. 3. By setting the included angles α and β, it is easy for the elastic locking pin to be embedded in the lock hole. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the clamping fixture for three-temperature testing of the communication module provided in this embodiment of the utility model; Figure 2 Another structural schematic diagram of the clamping fixture for three-temperature testing of the communication module provided in this embodiment of the utility model; Figure 3 Another structural schematic diagram of the clamping fixture for three-temperature testing of the communication module provided in this embodiment of the utility model; Figure 4 A cross-sectional view of the clamping fixture for three-temperature testing of the communication module provided in this embodiment of the utility model; Figure 5 Another cross-sectional view of the clamping fixture for three-temperature testing of the communication module provided in this embodiment of the utility model; Figure 6 for Figure 5 A magnified view of region A in the image.

[0016] The attached diagram shows the markings and corresponding component names: 1-Base, 11-Placement cavity, 2-Top cover, 21-Mounting slot, 211-Placement slot, 212-Leaving hole, 22-Mounting hole, 3-Heat dissipation component, 4-Self-locking assembly, 41-Elastic locking pin, 411-Rotating shaft, 412-Mounting plate, 4121-Third through hole, 413-Elastic component, 414-Lock, 4141-Connecting block, 4142-Abutting block, 42-Lock hole, 5-External component, 6-First hinge seat, 61-First through hole, 7-Second hinge seat, 71-Second through hole, 8-Hinge shaft, 9-Thermal conductive pad, 10-Test plate. Detailed Implementation

[0017] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0018] The clamping fixture for three-temperature testing of communication modules provided in this embodiment solves the technical problem that the clamping fixtures in existing three-temperature testing devices for communication modules are inconvenient to use. This clamping fixture for three-temperature testing of communication modules includes a base 1, a top cover 2, a heat sink 3, a self-locking assembly 4, and an external connector 5, wherein: refer to Figure 2 The base 1 has a placement cavity 11. The base 1 is a square plate, and the placement cavity 11 is located at the center of the square plate.

[0019] One end of the top cover 2 is hinged to one end of the base 1, so that the rotating top cover 2 facilitates the opening and closing of the cavity 11.

[0020] The heat sink 3 is installed on the side of the top cover 2 near the base 1. By setting the heat sink 3, during the testing process, the heat sink 3 is in contact with the top of the communication module under test to enhance the heat dissipation of the communication module and reduce the probability of the communication module overheating due to self-heating and triggering the overheat protection.

[0021] The self-locking component 4 works with the base 1 to achieve locking; and the self-locking component is unlocked under the action of external force. Thus, the self-locking component 4 facilitates the disassembly and assembly of the communication module.

[0022] refer to Figure 1 The external connector 5 is installed on the base 1. The external connector 5 is used to connect the base 1 to an external object. Optionally, the external connector 5 is a bolt. There are multiple bolts. The top of the base 1 has multiple threaded holes that are compatible with the bolts. The multiple bolts are screwed into the multiple threaded holes respectively. In this way, the bolts make it easy to install the base 1 on the test plate 10 to fix the base 1.

[0023] Optionally, the number of bolts is four, and the base 1 is also provided with four threaded holes. The four threaded holes are located at the four vertices of the same rectangle. In this way, the base 1 can be more securely connected to the test plate 10 by setting four bolts.

[0024] refer to Figure 3 It also includes a first hinge seat 6, a second hinge seat 7, and a hinge shaft 8, wherein: The side wall of the first hinge seat 6 is provided with a first through hole 61. There are two first hinge seats 6. Both first hinge seats 6 are installed on the side of the base 1 near the top cover 2, and the two first hinge seats 6 are spaced apart along a first direction, which is a horizontal direction.

[0025] The side wall of the second hinge seat 7 is provided with a second through hole 71. There are two second hinge seats 7. Both second hinge seats 7 are installed on the side of the top cover 2 near the base 1, and the two second hinge seats 7 are spaced apart along the first direction. The two first through holes 61 and the two second through holes 71 are coaxially arranged.

[0026] The hinge shaft 8 is rotatably installed in the two first through holes 61 and the two second through holes 71.

[0027] The above structure allows the top cover 2 to be rotatably mounted on the base 1 around the hinge axis 8, thereby achieving the purpose of hinge.

[0028] Optionally, two first hinge seats 6 are located between two second hinge seats 7, and the first hinge seats 6 and the second hinge seats 7 on the same side are in contact to prevent the top cover 2 from sliding on the hinge shaft 8. The inner wall of either of the two second through holes 71 is provided with an internal thread, and the outer wall of the hinge shaft 8 is provided with an external thread that matches the internal thread. The hinge shaft 8 is screwed onto the second hinge seat 7. In this way, by screwing the hinge shaft 8 onto the second hinge seat 7, the hinge shaft 8 is prevented from coming out of the first through hole 61 and the second through hole 71.

[0029] refer to Figure 4 and Figure 5 The self-locking component 4 includes an elastic locking pin 41 disposed on the top cover 2 and a locking hole 42 disposed on the base 1. The self-locking component 4 has a locked state and an unlocked state. In the locked state, when the top cover 2 is rotated to be parallel to the base 1 and located directly above the base 1, the elastic locking pin 41 is inserted into the lock hole 42 under its own elastic force, and the self-locking component 4 is in the locked state. In the unlocked state, applying external force to overcome the elasticity will cause the elastic locking pin 41 to disengage from the lock hole 42, and the self-locking component 4 will be in the unlocked state. In this way, the cooperation between the elastic locking pin 41 and the lock hole 42 makes it easier to lock and open the base and the top cover.

[0030] Optionally, the resilient locking pin 41 includes a pivot 411, a mounting plate 412, a resilient element 413, and a latch 414, wherein: The top cover 2 has a mounting groove 21 on the side away from the base 1, and the mounting groove 21 passes through the end of the top cover 2 away from the second hinge seat 7. The mounting groove 21 has mounting holes 22 on opposite sides that are adapted to the rotating shaft 411, and the axes of the two mounting holes 22 are parallel to each other with the first direction. The two ends of the rotating shaft 411 are respectively rotatably installed in the two mounting holes 22.

[0031] Optionally, the inner wall of either of the two mounting holes 22 is provided with an internal thread, and the outer wall of one end of the rotating shaft 411 is provided with an external thread that matches the internal thread. One end of the rotating shaft 411 is screwed into the mounting hole 22, thus preventing the rotating shaft 411 from coming out of the mounting hole 22.

[0032] One end of the mounting plate 412 is provided with a third through hole 4121 that is adapted to the rotating shaft 411. The rotating shaft 411 is rotatably mounted in the third through hole 4121, and the other end of the mounting plate 412 extends out of the mounting groove 21. The end extending out of the mounting groove 21 makes it easy for the operator to turn the mounting plate 412 so that the mounting plate 412 rotates on the rotating shaft 411.

[0033] The bottom of the mounting groove 21 has a placement groove 211. One end of the elastic element 413 is fixedly installed in the placement groove 211, and the other end of the elastic element 413 extends out of the placement groove 211 and is connected to the side of the mounting plate 412 near the placement groove 211. Thus, when the end of the mounting plate 412 extending out of the mounting groove 21 is subjected to an external force that drives the mounting plate 412 to rotate clockwise, the end of the mounting plate 412 connected to the elastic element 413 compresses the elastic element 413. When the external force disappears, the elastic element 413 returns to its original position, causing the end of the mounting plate 412 connected to the elastic element 413 to rotate counterclockwise, so that the end of the mounting plate 412 extending out of the mounting groove 21 rotates counterclockwise synchronously until the mounting plate 412 returns to its original position.

[0034] Optionally, the elastic element 413 is a spring, which can control the movement of the mounting plate 412 and make it automatically return to the predetermined original position. The spring has a simple structure and high reliability.

[0035] Optionally, there are two springs and two placement slots 211. The two placement slots 211 are evenly arranged along the first direction, and the two springs are respectively installed in the two placement slots 211. In this way, by setting two springs, the probability of spring failure is reduced, and the evenly arranged two springs make the force more uniform.

[0036] The bottom of the mounting groove 21 is provided with a clearance hole 212, and the clearance hole 212 penetrates the bottom of the placement groove 211. One end of the latch 414 is installed on the side of the mounting plate 412 near the base 1, and the latch 414 is located inside the clearance hole 212.

[0037] Optionally, the latch 414 includes a connecting block 4141 and an abutting block 4142, wherein: One end of the connecting block 4141 is mounted on the mounting plate 412. Specifically, one end of the connecting block 4141 is fixedly mounted on the mounting plate 412 on the side near the base 1 and is located at the end of the mounting plate 412 that extends out of the placement groove 211.

[0038] One end of the abutment block 4142 is installed on the side of the connecting block 4141 near the second hinge seat 7, and the other end of the abutment block 4142 extends in the direction of approaching the second hinge seat 7, that is, the latch 414 is L-shaped. Optionally, the abutment block 4142 can be connected to the connecting block 4141 by welding, bonding or hot melting. Of course, it can also be integrally formed.

[0039] refer to Figure 6 Optionally, the side of the abutment block 4142 away from the top cover 2 and the side close to the top cover 2 have an included angle α, the range of which is 30°≤α≤60°. For example, the degree of the included angle α can be 30°, 40°, 50° or 60°, that is, the bottom surface of the abutment block 4142 is an inclined surface. The bottom surface of the abutment block 4142 gradually slopes from the end close to the connecting block 4141 to the end away from the connecting block 4141 towards the top cover 2. In this way, by setting the inclined surface, when the movable end of the connecting plate is pressed, it is easier to drive the latch 414 to slide at the edge of the base 1, thereby facilitating the driving of the latch 414 to slide into the lock hole 42.

[0040] The lock hole 42 is located at one end of the base 1 away from the first hinge seat 6, and the lock hole 42 is located on the side of the base 1 away from the top cover 2, that is, the bottom end of the base 1 is provided with a lock hole 42 that is compatible with the abutment block 4142.

[0041] Optionally, the base 1 has an included angle β between the side of the base 1 near the top cover 2 and the top wall of the lock hole 42. That is, the top surface of the base 1 gradually tilts away from the top cover 2 from the end near the first hinge seat 6 to the end away from the first hinge seat 6. The included angle β ranges from 30°≤β≤60°. For example, the degree of the included angle β can be 30°, 40°, 50° or 60°, etc. In this way, through the cooperation between the top surface of the inclined base 1 and the bottom surface of the inclined abutment block 4142, the latch 414 is made easier to slide and embed into the lock hole 42.

[0042] With the above structure, when it is necessary to fix the communication module to be tested, rotate the movable end of the mounting plate 412 so that the mounting plate 412 gradually covers the base 1, and at the same time drive the latch 414 mounted on the mounting plate 412 to gradually approach the lock hole 42. When the bottom surface of the abutment block 4142 is in contact with the top surface of the base 1, continue to press the movable end of the top cover 2, the latch 414 is squeezed, so that the latch 414 rotates clockwise, and drives the mounting plate 412 connected to the latch 414 to rotate clockwise in sync. At the same time, the mounting plate 412 compresses the elastic element 413. Continue to press the movable end of the top cover 2 until the latch 414 separates from the edge of the base 1, the compression of the latch 414 disappears, and the force compressing the elastic element 413 disappears accordingly. 13. The mounting plate 412 is rotated counterclockwise, which in turn drives the latch 414 to rotate counterclockwise, thereby driving the latch 414 to embed into the lock hole 42. The abutment block 4142 of the latch 414 is tightly fastened to the top wall of the lock hole 42, thus achieving the purpose of locking. When the test is completed and the communication module needs to be removed, an external force is applied to the end of the mounting plate 412 that extends out of the mounting groove 21, causing the mounting plate 412 to rotate clockwise. The end of the mounting plate 412 connected to the elastic element 413 begins to compress the elastic element 413, driving the latch 414 to rotate clockwise until the latch 414 is disengaged from the lock hole 42, thus releasing the lock. After the lock is released, the external force is removed, the elastic element 413 returns to its original position, and the mounting plate 412 returns to its original position.

[0043] It also includes a thermally conductive pad 9, which is installed at the end of the heat sink 3 away from the top cover 2. Optionally, the thermally conductive pad 9 is a structural component made of a highly elastic material. In this way, the setting of the highly elastic thermally conductive pad 9 can not only enhance the heat dissipation of the communication module under test, but also make the thermally conductive pad 9 have a strong recovery ability, reducing the probability of failure of the thermally conductive pad 9. Optionally, the thermally conductive pad 9 can be a structural component made of silicone rubber. Silicone rubber has excellent elasticity and is resistant to high and low temperatures.

[0044] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A clamping fixture for testing the three temperatures of a communication module, characterized in that, include: The base (1) has a placement cavity (11); The top cover (2) is hinged at one end to one end of the base (1); A heat sink (3) is installed on the side of the top cover (2) near the base (1); The self-locking component (4) works with the base (1) to achieve locking; and the self-locking component (4) is unlocked under the action of external force; An external connector (5) is mounted on the base (1) and is used to connect the base (1) to an external object.

2. The clamping fixture for three-temperature testing of the communication module according to claim 1, characterized in that, Also includes: The first hinge seat (6) has a first through hole (61) on its side wall. There are two first hinge seats (6). Both first hinge seats (6) are installed on the side of the base (1) near the top cover (2), and the two first hinge seats (6) are spaced apart along the first direction. The second hinge seat (7) has a second through hole (71) on its side wall. There are two second hinge seats (7). Both second hinge seats (7) are installed on the side of the top cover (2) near the base (1). The two second hinge seats (7) are spaced apart along the first direction. The two first through holes (61) and the two second through holes (71) are coaxially arranged. The hinge shaft (8) is rotatably installed in the two first through holes (61) and the two second through holes (71).

3. The clamping fixture for three-temperature testing of the communication module according to claim 2, characterized in that, Two first hinge seats (6) are located between two second hinge seats (7), and the first hinge seats (6) located on the same side are in contact with the second hinge seats (7). The inner wall of any of the two second through holes (71) is provided with an internal thread, and the outer wall of the hinge shaft (8) is provided with an external thread that matches the internal thread. The hinge shaft (8) is screwed onto the second hinge seat (7).

4. The clamping fixture for three-temperature testing of the communication module according to claim 2, characterized in that, The self-locking assembly (4) includes an elastic locking pin (41) disposed on the top cover (2) and a locking hole (42) disposed on the base (1). The self-locking assembly (4) has a locked state and an unlocked state. In the locked state, when the top cover (2) is rotated to be parallel to the base (1) and located directly above the base (1), the elastic locking pin (41) is inserted into the lock hole (42) under its own elastic force, and the self-locking component (4) is in the locked state; In the unlocked state, applying external force to overcome the elastic force can cause the elastic locking pin (41) to exit the lock hole (42), and the self-locking component (4) is in the unlocked state.

5. The clamping fixture for three-temperature testing of the communication module according to claim 4, characterized in that, The resilient locking pin (41) includes: The rotating shaft (411) has a mounting groove (21) on the side of the top cover (2) away from the base (1), and the mounting groove (21) passes through the end of the top cover (2) away from the second hinge seat (7). Mounting holes (22) adapted to the rotating shaft (411) are provided on the opposite sides of the mounting groove (21), and the axes of the two mounting holes (22) are parallel to each other with the first direction. The two ends of the rotating shaft (411) are respectively rotatably installed in the two mounting holes (22). The mounting plate (412) has a third through hole (4121) at one end that is adapted to the rotating shaft (411). The rotating shaft (411) is rotatably mounted in the third through hole (4121), and the other end of the mounting plate (412) extends out of the mounting groove (21). The elastic element (413) has a placement groove (211) at the bottom of the mounting groove (21). One end of the elastic element (413) is fixedly installed in the placement groove (211), and the other end of the elastic element (413) extends out of the placement groove (211) and is connected to the side of the mounting plate (412) near the placement groove (211). The mounting groove (21) has a clearance hole (212) at the bottom, and the clearance hole (212) penetrates the bottom of the placement groove (211). One end of the latch (414) is installed on the side of the mounting plate (412) near the base (1), and the latch (414) is located in the clearance hole (212).

6. The clamping fixture for three-temperature testing of the communication module according to claim 5, characterized in that, The latch (414) includes: A connecting block (4141) is mounted on the mounting plate (412) at one end; The abutment block (4142) has one end installed on the side of the connecting block (4141) near the second hinge seat (7), and the other end of the abutment block (4142) extends toward the second hinge seat (7).

7. The clamping fixture for three-temperature testing of the communication module according to claim 6, characterized in that, The abutment block (4142) has an included angle α between the side away from the top cover (2) and the side close to the top cover (2), and the included angle α is in the range of 30°≤α≤60°.

8. The clamping fixture for three-temperature testing of the communication module according to claim 4, characterized in that, The lock hole (42) is located at one end of the base (1) away from the first hinge seat (6), and the lock hole (42) is located on the side of the base (1) away from the top cover (2).

9. The clamping fixture for three-temperature testing of the communication module according to claim 8, characterized in that, The base (1) has an included angle β between the side of the top cover (2) and the top wall of the lock hole (42), and the included angle β is in the range of 30°≤β≤60°.

10. The clamping fixture for three-temperature testing of a communication module according to any one of claims 1-9, characterized in that, It also includes a thermally conductive pad (9) installed on the end of the heat sink (3) away from the top cover (2).

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