A small navigation device assembly method

Abstract

This invention belongs to the field of electronic product assembly technology, specifically relating to an assembly method for a small navigation device. It is suitable for assembling compact navigation devices, enabling the assembly of the outer casing, circuit board, and connections between compartments. The main steps of this invention include: preparing components; potting the second compartment; filling with vulcanized silicone rubber, connecting the compartments before the silicone rubber cures, and waiting for the silicone rubber to cure; potting the first compartment; removing excess silicone rubber; and reconnecting the compartments. The main advantages of this invention are: space saving and prevention of structural interference problems.

Description

Technical Field

[0001] This invention belongs to the field of electronic product assembly technology, and specifically relates to a method for assembling a small navigation device. Background Technology

[0002] Small navigation devices mainly consist of circuit boards and housings. More complex small navigation devices contain multiple sections, which are assembled to achieve complete product functionality. During section assembly, two connections must be ensured: one is the connection to the housing, and the other is the circuit signal connection.

[0003] One existing technology involves assembling the circuitry and outer casing of each of the two compartments separately, then using cables to connect the circuit signals between the compartments, and finally connecting the outer casings of the two compartments. The cables connect the circuitry of the two compartments via connectors or soldering. However, the cables occupy additional space. The disadvantage of this method is that it wastes space.

[0004] Another existing technology involves assembling the circuitry and outer casing of each of the two compartments separately, with the compartments directly connected via connectors. This method requires simultaneous alignment of both the outer casing and the connectors, necessitating high machining precision. Insufficient precision can lead to misalignment of the connectors when the outer casing is aligned, or vice versa, ultimately resulting in structural interference and assembly failure. The disadvantage of this method is the potential for structural interference, which can prevent assembly.

[0005] Existing methods have the drawback of wasting space or the potential for structural interference. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] The technical problem to be solved by the present invention is: how to provide an assembly method for a small navigation device, so that the structure of the small navigation device is more compact and structural interference is prevented under conditions of lower machining accuracy.

[0008] (II) Technical Solution

[0009] To address the problems of existing technologies, the present invention provides a method for assembling a small navigation device, the method comprising the following steps:

[0010] Step 1: Prepare the components, including: the outer shell of the first compartment, the circuit board of the first compartment, the outer shell of the second compartment, and the circuit board of the second compartment; wherein, the circuit board of the first compartment is soldered with a first connector; the circuit board of the second compartment is soldered with a second connector; wherein, the circuit board of the first compartment includes a processor, a gyroscope, and an accelerometer;

[0011] Step 2: The second section circuit board is placed inside the second section housing, exposing the second connector, and the second section is potted;

[0012] Step 3: Fill the space between the first compartment circuit board and the first compartment shell with vulcanized silicone rubber; before the vulcanized silicone rubber cures, connect the first connector to the second connector and mate the first compartment shell with the second compartment shell; wait for the vulcanized silicone rubber to cure.

[0013] Step 4: Fill and seal the first compartment;

[0014] Step 5: Separate the first and second compartments and remove excess vulcanized silicone rubber;

[0015] Step Six: Re-dock the first and second modules.

[0016] The outer shells of the first and second compartments are both cylindrical.

[0017] The second section circuit board includes a laser detector.

[0018] The second section circuit board includes a navigation satellite receiver.

[0019] The second section circuit board includes a servo controller.

[0020] The circuit board of the first compartment includes a magnetic sensor.

[0021] The potting material used in the potting process is epoxy resin.

[0022] The potting material used in the potting process is polyurethane.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] On the one hand, the present invention does not use additional cables, thus saving space and making the structure more compact; on the other hand, the present invention adopts the method of assembling first and then fixing, thus avoiding the problem of structural interference. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of step one of the present invention.

[0027] Figure 2 This is a schematic diagram of step two of the present invention.

[0028] Figure 3 This is a schematic diagram of step three of the present invention.

[0029] Figure 4 This is a schematic diagram of step four of the present invention.

[0030] Figure 5 This is a schematic diagram of step five of the present invention.

[0031] Figure 6 This is a schematic diagram of step six of the present invention. Detailed Implementation

[0032] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0033] To address the problems of existing technologies, the present invention provides a method for assembling a small navigation device, the method comprising the following steps:

[0034] Step 1: Prepare the components, including: the outer shell of the first compartment, the circuit board of the first compartment, the outer shell of the second compartment, and the circuit board of the second compartment; wherein, the circuit board of the first compartment is soldered with a first connector; the circuit board of the second compartment is soldered with a second connector; wherein, the circuit board of the first compartment includes a processor, a gyroscope, and an accelerometer;

[0035] Step 2: The second section circuit board is placed inside the second section housing, exposing the second connector, and the second section is potted;

[0036] Step 3: Fill the space between the first compartment circuit board and the first compartment shell with vulcanized silicone rubber; before the vulcanized silicone rubber cures, connect the first connector to the second connector and mate the first compartment shell with the second compartment shell; wait for the vulcanized silicone rubber to cure.

[0037] Step 4: Fill and seal the first compartment;

[0038] Step 5: Separate the first and second compartments and remove excess vulcanized silicone rubber;

[0039] Step Six: Re-dock the first and second modules.

[0040] The outer shells of the first and second compartments are both cylindrical.

[0041] The second section circuit board includes a laser detector.

[0042] The second section circuit board includes a navigation satellite receiver.

[0043] The second section circuit board includes a servo controller.

[0044] The circuit board of the first compartment includes a magnetic sensor.

[0045] The potting material used in the potting process is epoxy resin.

[0046] The potting material used in the potting process is polyurethane.

[0047] Example 1

[0048] The first step of this embodiment is as follows: Figure 1 As shown. Prepare the accessories, including a first compartment housing 101, a first compartment circuit board 102, a second compartment housing 201, and a second compartment circuit board 202. A first connector 103 is soldered to the first compartment circuit board 102. A second connector 203 is soldered to the second compartment circuit board 202. The first compartment circuit board 102 includes a processor, a gyroscope, and an accelerometer.

[0049] Step Two Figure 2 As shown. The second compartment circuit 202 is placed inside the second compartment housing 201. After filling with the second compartment potting material 204, potting is achieved. After potting, the second compartment circuit 202 is fixed to the second compartment housing 201. The second connector 203 is exposed to facilitate connection with the first compartment in subsequent steps.

[0050] Step 3 as follows Figure 3 As shown. Silicone rubber 105 is filled between the first compartment circuit 102 and the first compartment housing 101. Silicone rubber 105 has a slow curing characteristic. Assembly is completed after filling with silicone rubber 105 and before curing. Connector 103 is inserted into the second connector 203, and the first compartment housing 101 is connected to the second compartment housing 201. Silicone rubber 105 has two functions: firstly, it allows for assembly before curing, preventing structural interference; secondly, it seals gaps, preventing potting compound overflow in subsequent steps.

[0051] Step four as follows Figure 4 As shown. The first compartment is filled with potting material 104.

[0052] Step 5 Figure 5 As shown. Separate the first and second compartments and remove excess vulcanized silicone rubber.

[0053] Step Six Figure 6 As shown. Reconnect the first and second modules to complete the assembly of the small navigation device.

[0054] The first section circuit board 102 includes a processor, a gyroscope, and an accelerometer, used to implement the functions of a small navigation device.

[0055] In a preferred embodiment, the first section circuit board 102 includes a magnetic sensor. Specifically, the first section circuit board 102 includes a processor, a gyroscope, an accelerometer, and a magnetometer, used to implement the functions of a small navigation device.

[0056] In a preferred embodiment, the second section circuit board 202 includes a laser detector.

[0057] In a preferred embodiment, the second module circuit board 202 includes a navigation satellite receiver.

[0058] In a preferred embodiment, the second section circuit board 202 includes a servo controller.

[0059] In a preferred embodiment, epoxy resin is used as the potting material. Epoxy resin has high strength and can protect the circuit board inside the small navigation device.

[0060] In a preferred embodiment, polyurethane is used as the potting material. Polyurethane has a low density, which helps to reduce the weight of small navigation devices.

[0061] The first section potting material 104 and the second section potting material 204 can be the same material or different materials.

[0062] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for assembling a small navigation device, characterized in that, The assembly method for the small navigation device includes the following steps: Step 1: Prepare the components, including: the outer shell of the first compartment, the circuit board of the first compartment, the outer shell of the second compartment, and the circuit board of the second compartment; wherein, the circuit board of the first compartment is soldered with a first connector; the circuit board of the second compartment is soldered with a second connector; wherein, the circuit board of the first compartment includes a processor, a gyroscope, and an accelerometer; Step 2: The second section circuit board is placed inside the second section housing, exposing the second connector, and the second section is potted; Step 3: Fill the space between the first compartment circuit board and the first compartment shell with vulcanized silicone rubber; before the vulcanized silicone rubber cures, connect the first connector to the second connector and mate the first compartment shell with the second compartment shell; wait for the vulcanized silicone rubber to cure. Step 4: Fill and seal the first compartment; Step 5: Separate the first and second compartments and remove excess vulcanized silicone rubber; Step Six: Re-dock the first and second modules; Silicone rubber has two functions: firstly, it enables assembly before curing to prevent structural interference; secondly, it seals gaps to prevent potting compound from overflowing in subsequent steps.

2. The assembly method of the small navigation device as described in claim 1, characterized in that, Both the outer shell of the first compartment and the outer shell of the second compartment are cylindrical.

3. The assembly method for a small navigation device as described in claim 1, characterized in that, The second section circuit board contains a laser detector.

4. The assembly method of the small navigation device as described in claim 1, characterized in that, The second module's circuit board contains a navigation satellite receiver.

5. The assembly method of the small navigation device as described in claim 1, characterized in that, The second section circuit board contains a servo controller.

6. The assembly method of the small navigation device as described in claim 1, characterized in that, The circuit board of the first compartment contains a magnetic sensor.

7. The assembly method of the small navigation device as described in claim 1, characterized in that, The potting material used in the potting process is epoxy resin.

8. The assembly method of the small navigation device as described in claim 1, characterized in that, The potting material used in the potting process is polyurethane.

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